Please state the location and include REMOTE for remote work, REMOTE (US) or similar if the country is restricted, and ONSITE when remote work is not an option.

Please only post if you personally are part of the hiring company—no recruiting firms or job boards. One post per company. If it isn't a household name, explain what your company does.

Please only post if you are actively filling a position and are committed to responding to applicants.

Commenters: please don't reply to job posts to complain about something. It's off topic here.

Readers: please only email if you are personally interested in the job.

Searchers: try https://dheerajck.github.io/hnwhoishiring/, http://nchelluri.github.io/hnjobs/, https://hnresumetojobs.com, https://hnhired.fly.dev, https://kennytilton.github.io/whoishiring/, https://hnjobs.emilburzo.com, or this (unofficial) Chrome extension: https://chromewebstore.google.com/detail/hn-hiring-pro/mpfal....

Don't miss these other fine threads:

Who wants to be hired? https://news.ycombinator.com/item?id=45438501

Freelancer? Seeking freelancer? https://news.ycombinator.com/item?id=45438502

VersaFeed.com | SENIOR SOFTWARE ENGINEER (Python/Django) | REMOTE (USA ONLY) | Full-time

About us: Fancy ETL pipeline which processes products from huge ecommerce companies. Data extraction and massage, delivery to destinations like Google/Meta/TikTok/etc. Profitable, 15+ yrs stable, 100% employee-owned. No VC, no pointless meetings, just serious coding.

Stack: Python/Django, JavaScript, VueJS, PostgreSQL, Snowflake, Docker, Git, AWS, AI/LLM integrations (OpenAI & Gemini).

Compensation: $150K–$220K USD/year DOE.

You: Senior dev who's seen (and fixed) enough dumpster-fire code to last a lifetime. Python/Django deeply internalized; ideally strong Vue (or React) skills. Git/Docker/REST are second nature. You’re the coder other devs come to when their stuff breaks: an architect-level thinker who’s rewritten ‘clever’ code into something that actually works. You play well with others and write code that’s easy to live with. Bonus: AI integrations, Py2→Py3 migrations, Snowflake (or Databricks) experience.

Timezones: Primary time zone is PST (standups at 9AM PST). Generally async-friendly but you must reside in the United States.

Benefits: 401K match, healthcare, equity, fully remote. Stable company with no time-wasters.

Apply: email jobs+hn254 [the-at-mark-thing] versafeed [the-period-thing] com

At Bedrock Data, we are building next-generation data security platforms that require the highest standards of performance, reliability, and scale. We're looking for talented backend engineers to join our growing team at Bedrock. Our backend engineering team is responsible for:

Large-scale distributed systems and data processing All services are scale out, modern full stack platform Cloud infrastructure High-performance backend services handling millions of requests

Please apply here: https://jobs.ashbyhq.com/bedrock/4b88d31a-c79c-43eb-af1a-86d...

Two Six Technologies |Senior Reverse Engineer/Vulnerability Researcher | Arlington, VA | ONSITE | Full Time |https://job-boards.greenhouse.io/twosixtechnologies/jobs/556...... Two Six Technologies is seeking senior reverse engineers & vulnerability researchers to perform in-depth reverse engineering and exploit development to transition those findings into capabilities. We are looking to hire embedded security researchers with experience in the following categories: firmware reverse engineering, hardware reverse engineering, and Linux/UNIX kernel development. Additional opportunities are available for embedded software engineers, electronic design engineers, digital signal processing engineers, hardware reverse engineers, firmware reverse engineers, and low-level kernel developers looking to enter the security field. We would love to hear from you if you work in the embedded security domain. Preference is for applicants who hold a TS clearance and have the ability to obtain SCI at a minimum. If interested, please reach out to our team @ recruiting@twosixtech.com

Jupiter Health | Founding Engineer | New York City (In-person 4 days / remote 1 day in Union Square) | Full-Time | $200K + equity Jupiter is building a better approach to healthcare for 80 million working age Americans like you and me.

We all know that healthcare is broken. In large part, this is because too much quality, pricing, and access data has been hidden from view, and there are too many intermediaries creating complexity between consumers and the care they need. At Jupiter, we are creating a more direct, flexible, and responsive healthcare system that better serves working-age Americans.

Our triple aim: Improve your health, improve your financials, and make it convenient and easy.

We have built a proprietary dataset of over 12 million direct pay rates across 40,000 providers, covering all types of sites of care in the US, from hospitals, surgery centers, imaging, diagnostics, specialists, primary care, urgent care, virtual care, physical therapy, dental, and vision.

We are now building out our consumer search product which we aim to scale up rapidly in 2026.

We are looking for a Founding Engineer energized by our mission and eager to be part of the founding team at a startup tackling a massive market.

Read more here and get in touch if this is potentially a good fit! https://www.notion.so/Jupiter-Health-Founding-Engineer-277f4...

Founding Engineer (Warsaw, full-time, in-office) Elastics is building an AI-native operating system for trading - deterministic agents, live data, portfolio management and execution across prediction markets, crypto, and beyond. We are Pre-Seed funded, working with our first clients, and need a Founding Engineer to accelerate building core product infrastructure. Responsibilities: Build and own our agent orchestration & runtime engine (async, distributed systems) Deploy and scale services on Azure (Docker, CI/CD, monitoring) Connect to exchanges and data sources (API/websocket integration, streaming) Implement portfolio and risk calculations (PnL, positions, Greeks, risk metrics) Implement market discovery dashboards on our platform Requirements: 5+ years of backend experience (Python, distributed systems, financial data pipelines) Comfort with Docker, Redis/Kafka, PostgreSQL Strong C++ experience Interest in financial markets and trading Startup mindset: you can ship, own, and iterate fast Warsaw-based (in-office) or willing to relocate Fluency in English - our work and clients are international Bachelor's or Master's degree in Computer Science, Mathematics, or a related field Offer: $5,000/month starting salary (B2B) + meaningful equity (true founding role) Work at the forefront of financial and AI innovation Work directly with experienced math, quant and product founders Exposure to top global hedge funds, exchanges and VCs

Send your resume to contact@elastics.ai with HN who’s hiring in the title

Rotabull | Senior Software Engineer | Full Time | Hybrid 3x / week | NYC

Rotabull is building a next-generation platform for buying and selling aircraft parts, to bring online the $75 billion that airlines spend on parts and repairs each year. Our customers are aircraft parts suppliers around the world, depending on our systems to run their day-to-day businesses.

We're expanding our NYC-based team with a few hires over the next year -- if working with a small, bootstrapped team in a legacy industry with lots of opportunity appeals to you, please see https://app.dover.com/jobs/rotabull for more information or to apply.

Trak | Product Manager | Full Time | Hybrid NYC

Trak is revolutionizing the collision repair and ADAS calibration industry by building the first AI-driven calibration and compliance platform designed specifically for collision centers, ADAS calibration companies, and the technicians who power them. We are creating the operating platform of record for an industry that has been underserved by technology, enabling shops to automate calibration mapping, documentation, and compliance workflows at scale. By leveraging proprietary datasets and machine intelligence, we are transforming fragmented, manual processes into seamless, data-driven operations. Backed by leading venture investors and scaling aggressively, this is your opportunity to help build the platform that will define the future of automotive repair and calibration.

We are actively hiring for a Product Manager, for more information please see https://adastrak.com/careers. Send resumes and questions to careers+pm@adastrak.com

Ford Motor Company | Staff Cloud Site Reliability Engineer | Full-Time | Remote (US) | 120k-220k USD

Visa Sponsorship Is not provided.

Ford is seeking an experienced and passionate Site Reliability Engineer (SRE) to join our team and lead the development, enhancement, and extension of SRE principals in our Cloud Organization. You will play a critical role in driving the implementation of SRE best practices in key Cloud shared services guiding Cloud operation teams through their SRE Journey. In this role, you will not only contribute hands-on to ensuring the reliability and scalability of our systems but also mentor and lead a team of Global SREs, fostering a culture of collaboration and continuous improvement.

Our Cloud Site Reliability Engineering (SRE) team enables modernization by providing robust SRE standards, IaC patterns and modules, deployment and rollback automation, and scalability, and capacity planning at scale. The resulting practices improves release velocity while ensuring platform level reliability and resiliency that our users demand.

https://efds.fa.em5.oraclecloud.com/hcmUI/CandidateExperienc...

If interested, reach out directly to me:channon4 [at] ford.com. Send me your resume.

Chime | Software Engineer, Infrastructure | Full Time | REMOTE (US)

We’re looking for talented engineers who: • Have hands-on experience in infrastructure or platform engineering. • Enjoy working on distributed systems, scaling, automation, and reliability. • Bring a passion for operational excellence and continual improvement. • If this sounds like you, check out the position here: https://lnkd.in/gxz2Kac8

Findigs | Full-time | NYC | 3x/week in office M,T, Th) | findigs.com

At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting.

We build high-scale applications that streamline renting for millions. Our modern tech stack includes TypeScript, Python, Node.js, React, and scalable cloud infrastructure.

We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment.

Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Open role: Senior Software Engineer —> Apply here (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...)

Base Salary of $180k - $210

Pre-IPO Equity

401k Matching up to 4%

Unlimited PTO

Lunch in office every day; home office setup stipend; monthly gym stipend

ReadWorks (YC-backed nonprofit - Imagine K12 F'14) | Senior Data Engineer | REMOTE (US Only) | Contract (up to 20hrs/week) | $70-110/hr

Building data infrastructure to support 11M+ students and teachers learning to read.

We're a nonprofit education platform providing free, research-based literacy resources to K-12 classrooms nationwide, with deep focus on under-resourced communities.

The role: Design and maintain ETL pipelines, ensure data quality across our warehouse and reporting stack, build data infrastructure that powers educational insights for millions.

Stack: SQL, Redshift, AWS (S3, DynamoDB, EC2, Firehose), Python, Linux. Bonus: Django, Elasticsearch, Kibana, Redis, Ruby, Node.js

We value: Mandatory testing, maintainable code, operational consistency (CI/CD, infrastructure as code, rigorous monitoring)

Impact: Your work directly supports teachers and students in under-resourced communities. 20+ years of proven results in engaging students and strengthening literacy instruction.

Apply: Email your details (CV/Resume, Cover Letter, or any other info we should know about you) to engineering at readworks.org

Full posting here: https://about.readworks.org/careers.html

Odoo | Full Stack Developer | Hybrid (Belgium, 3 days/week) | Full-time | Visa + €10k Signing Bonus | https://www.odoo.com/r/mnk

Odoo builds open-source business apps used by millions. We're hiring full stack developers to work on our Python/PostgreSQL backend, fast JS framework, mobile apps, website builder, and more.

Why join us:

- €10k signing bonus - Visa sponsorship + relocation support (contains 1 month free housing) - No clients, no deadlines — just clean, open-source code - Pick your team after 3 weeks of onboarding - Great team, countryside office (with chef!), flexible hours

You:

- Master several programming languages - Proficiency in object-oriented programming - Strong in SQL, data structures, and DB design - Passionate, autonomous, and eager to build real stuff

Apply → https://www.odoo.com/r/mnk

Sesame | Full-time | SF/NYC/Bellevue | On-site | https://www.sesame.com/

Sesame believes in a future where computers are lifelike - with the ability to see, hear, and collaborate with us in ways that feel natural and human. With this vision, we're designing a new kind of computer, focused on making voice companions part of our daily lives.

Our team brings together founders from Oculus and Ubiquity6, alongside proven leaders from Meta, Google, and Apple, with deep expertise spanning hardware and software.

Open Roles:

- ML Engineers

- ML Scientists

- Product Designers

- Product Engineers

- iOS Engineers

- Embedded Engineers

- Electrical Engineers

https://jobs.ashbyhq.com/sesame

Hudl | Senior Software Engineer | REMOTE (Nebraska, Kentucky, Kansas City, Chicago, Austin or Dallas) | $107,000 - $179,000 Salary | https://job-boards.greenhouse.io/hudl/jobs/7062845?gh_src=4t...

Ever wonder how millions of highlights and game-film videos get processed and delivered to teams around the globe? It happens on the Core Video team at Hudl, and we're looking for a Senior Software Engineer to join!

Every day Hudl solves challenges around our video processing pipeline that handles thousands of concurrent videos while prioritizing cost-efficiency, scalability, and exceptional video quality. We work on problems at a scale that few other companies can offer.

Founding Engineer (SF + NY)

We’re growing our engineering teams in San Francisco and New York and are looking for builders who want to help shape both product and technical direction.

Open Roles:

LLM Engineers – experience working with large language models, from training and fine-tuning to production deployment.

Typescript Engineers – strong background with modern web technologies (React, Node.js, etc.) and an interest in scaling systems.

Our teams are collaborative and fast-moving, tackling hard technical problems with real impact. Engineers here work closely across product and design, and have a big voice in how our systems evolve.

If this sounds like the kind of environment you’d thrive in, we’d love to connect -- https://www.linkedin.com/in/jake-salomon-243347133/

Oxidian | https://www.oxidian.com | Remote (Ireland/EU ONLY) We make sure public money is well invested by building software for governments. We're doing to government software services what challenger banks did to banking.

Our projects range from high-performance computing libraries to web applications and modern DevOps pipelines. We focus on automating complex tasks and creating user-friendly interfaces to improve the working lives of scientists and researchers.

We move quickly, trust each other to deliver, and give you space to own your work from day one.

We're currently hiring for:

* Senior Python Developer

* Senior Rust / C++ Developer

More information and how to apply: https://www.oxidian.com/#join-us

HomeCloud | Senior Cloud Engineer (AWS / Node.js / TypeScript) | Remote (US, EU UTC-6 to UTC+2) | Full-Time (Contractor)

HomeCloud is a fast-growing proptech startup rethinking home inspections, onboarding, and management using cloud-native systems and AI. We just raised a $3.5M seed round from top VCs and are building intelligent infrastructure for the future of homeownership.

We’re looking for a Senior Cloud Engineer to help us build scalable backend systems on AWS using Lambda, Step Functions, DynamoDB, EventBridge, and more. You’ll work with a modern serverless stack, integrate AI services (e.g. OpenAI, Bedrock), and help define our engineering culture alongside the CTO and founding team.

You might be a fit if you:

• Have 5+ years of experience building serverless systems on AWS

• Are fluent in Node.js + TypeScript

• Have worked with serverless architecture and event-driven systems

• Are curious about AI/LLM APIs and how to integrate them into real-world workflows

• Value ownership, pragmatism, and building useful products quickly

This is a high-impact, remote-first role on a small, focused team building the foundation of a data-rich, AI-powered platform.

Remote (UTC-6 to UTC+2)

Apply: https://app.dover.com/apply/HomeCloud/24919848-66d7-48c0-bf5...

Learn more: https://gethomecloud.com/about-us

Stellar Science | Hybrid (USA) Albuquerque NM, Washington DC (Tysons VA), Dayton OH | Full time, interns/co-ops | U.S. citizenship required | https://www.stellarscience.com

Company: We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive.

Experience: Other than interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field, plus preferably 3+ years of work experience, or a Masters or PhD in lieu of work experience. (Roughly 25% of our staff have PhDs.)

Technologies: Mostly C++23, Qt 6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and analysis projects use Python and C++. Some projects use Java or Typescript/React.

Apply online at https://www.stellarscience.com/careers/.

QUOBYTE | Santa Clara, CA and Berlin, Germany | Full-time | ONSITE | https://www.quobyte.com/ At Quobyte, we are working on the Data Center File System (DCFS), a highly scalable and fault-tolerant software storage system built around a parallel file system core. Customers use Quobyte DCFS for ML and HPC clusters in industry and academia, k8s and OpenStack infrastructures, streaming, web mail, post production, origin and CGI clusters, and as a scalable backend for SaaS products. There are Quobyte DCFS clusters which span thousands of machines and crunch 100s of GB/s!

Under the hood, DCFS is a full-stack storage system, written in Java and C++. The engineering work covers everything from kernel development over our own replicated database system design to distributed algorithms (Paxos!) and performance. In short: lots of real-world challenging and fun problems! We work as a highly efficient engineering team, and do mandatory code reviews, lots of unit and integration testing,

Berlin, Germany:

* Software Engineer

* Infrastructure / Devops Engineer

East and West Coast:

* Sales Engineer

For detailed job descriptions please and application process, please visit https://www.quobyte.com/company/careers or write to work at quobyte.com.

Erdos Miller | Data Wrangler (Part-time → Full-time growth) | Remote (US preferred, flexible otherwise)

We build Measurement While Drilling (MWD) equipment — and we love it. That passion helped us capture the majority of the North American oil & gas market, and now it’s fueling our geothermal innovation, building underground navigation systems for the next generation of clean energy.

We’re now looking for a Data Wrangler to help us make smarter, faster decisions with our data. This role blends data engineering and data science: wrangling quirky file formats, structuring messy datasets, and turning it all into live tools that guide company strategy. Starts part-time with the opportunity to grow into a full-time, career-defining role. What you’ll do

Partner with the CEO + stakeholders to translate business needs into pipelines, dashboards, and tools. Build ETL pipelines, write parsers for proprietary formats, and maintain relational databases (PostgreSQL, MySQL). Create interactive dashboards/apps with Dash, Streamlit, or similar (we avoid Tableau/Excel hell). Deliver insights via live web apps where data isn’t static — it’s explorable. Tech we use Python, SQL (PostgreSQL/MySQL), S3, modal.com. Bonus: React/web dev experience to shape customer-facing real-time tools. Why you’ll like it here You’ll own projects end-to-end, avoid over-engineering (no Kubernetes, no Airflow — just the right tools), and directly influence decisions. As our company and data needs grow, so does your role. If this sounds fun, email ken@erdosmiller.com with your background and what excites you about wrangling data.

Rectangle | On-site Chicago, or US remote in SF and NY | Full-Time | Salary + Equity

We're looking to hire a dedicated full-stack engineer at Rectangle.

If you are (or know!) someone who has thought deeply about distributed coordination, have strong opinions on conflict resolution, or get excited about building systems that are resilient to crazy amounts of chaos, I'd love to talk to you!

Over the last few months we’ve been investing heavily in building our internal infrastructure to power automation, integration, and visibility across the supply chain. We’re rapidly onboarding new customers and are looking for an engineer who’s excited to build alongside them.

You’ll be working directly with customers, solving real-world problems, and scaling the solutions you build. The products you own end-to-end will coordinate billions of dollars of freight, and unlock real revenue and efficiency for leading tech-enabled logistics companies.

This is a great opportunity for someone who loves to operate 0 → 1 while also being directly involved in shaping our platform strategy as we keep stacking investments we’ve made into our infra layer.

Stack: Typescript, Go, Kafka, SQL, AWS

Email hn [@] rectanglehq.com or submit a POST request with X-Application-Key: FDE-CHALLENGE-01 to challenge.rectanglehq.com and see what happens :)

https://rectanglehq.com

Meegos for soccer fans | Founding engineer | Remote | Full-time Join Meegos as our Founding Engineer. Our goal is clear - build the most beloved soccer app in the world. You'll own architecture, infrastructure, data pipelines, and end‑to‑end product experiences from day one. We're just getting started but have sights high, and the founding team to get there. You’ll prototype and ship fast, shape product direction alongside the founder, and leverage today’s best AI models and tools to deliver fan experiences no one else can. We’re looking for an AI‑native full‑stack builder fluent in React or React Native, Node or Python, SQL, modern APIs and integrations, with hands‑on experience using AI APIs and vector databases, strong communication, and 6+ hours overlap with PST. If you live the global soccer culture, thrive in early‑stage environments, and want meaningful equity, we’d love to hear from you — email josh@meegos.fun with your LinkedIn or resume and a note on why you’re a fit.

MONUMENTAL | https://www.monumental.co/ | Amsterdam, The Netherlands | Full Time | Onsite

We make robots that autonomously construct buildings. We are currently developing and manufacturing our autonomous bricklaying system in the beautiful centre of Amsterdam. And our robots are already earning real revenue operating on construction sites all over the Netherlands.

We're looking for experienced FULL-STACK ENGINEERS who can help us solve problems like:

- Data sync and analytics queries across a fleet of robots (that can be offline for hours at a time)

- Rapid deployment and iteration of experimental software changes across firmware, control software and UI

- Modelling buildings in code and finding the right UI for operators to edit them

Check out the progress we've already made on Atrium, our operating system for robotics: https://www.monumental.co/atrium

We're rapidly scaling up operations and we need experienced, generalist engineers who can build the systems that manage all of that complexity. If you think that 'full-stack' could reasonably mean debugging firmware, mixing buckets of mortar _and_ writing React components, we are looking for you. Robotics experience not required!

https://www.monumental.co/jobs

ROCKSTAR GAMES | NYC-San Diego-New England| FULL-TIME | FULLY ONSITE | SENIOR .NET SOFTWARE ENGINEERS | Existing Visa Transfers Welcome

A career at Rockstar Games is about being part of a team working on some of the most creatively rewarding and ambitious projects to be found in any entertainment medium. You would be welcomed to a dedicated and inclusive environment where you can learn, and collaborate with some of the most talented people in the industry.

RESPONSIBILITIES

Develop highly scalable server-side features for our online game console clients using object-oriented development in C#, ASP.NET, and SQL Server.

Develop back-end services and APIs. Actively practice Test Driven Development (TDD) while developing new features and refactoring existing code.

Work in an AWS cloud-based, event-driven microservice architecture with a high priority on web performance optimization.

Collaborate with other Rockstar technology teams across our worldwide studios.

New York: https://grnh.se/01daf4583us

San Diego: https://grnh.se/87116de23us

New England: https://grnh.se/3d1c2f9a3us

You can see our other openings here: https://www.rockstargames.com/careers/openings

SimplePay | Full Stack Kotlin Developer | REMOTE (UTC+0 to UTC+6)

At SimplePay we're developing our own low code platform that's designed specifically for creating SaaS apps. We're building in Kotlin, and targeting Kotlin on the backend and Vue.js on the frontend. You will work on this low code platform, as well as use it to create our new potfolio of SaaS applications, to complement our existing payroll business that stands at 52,000 customers and growing (https://www.simplepay.co.za, plus other countries).

If you love Kotlin and can handle complex abstractions, please apply! If you only have Java experience, we will still consider you. Please note that we currently prefer people with 5+ years of experience.

Apply here: https://teamsimplepay.applytojob.com/apply/nHsQeEyIGA/Senior...

ISRG / Let's Encrypt | https://www.abetterinternet.org/careers/ REMOTE (US) Director of Advancement (Corporate Sponsorships) Assistant Director of Advancement (Grants)

Our mission at ISRG is to reduce financial, technological, and educational barriers to secure communication over the Internet. We operate three projects (Let’s Encrypt, Prossimo, and Divvi Up) that improve the security and privacy of billions of people using the Internet.

ISRG was founded 12 years ago as a 501(c)(3) nonprofit. Throughout our history, we’ve grown and diversified our revenue to respond to evolving needs and ambitions within our organization. We operate as a combined comms and fundraising team because we view the two functions as symbiotic. As such, we highly value and deliver strategic, compelling, and effective communications which are the wind in the sails of our successful fundraising.

We are looking for experienced fundraising development professionals to help strengthen and diversify our funding channels. Please share with anyone you know who might be a fit! Thank you!

Tandem Health | Senior/Staff Software Engineers | On-site in Stockholm, Sweden | Full time

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and are already rolling out across some of the largest care chains across Europe, including most of the NHS.

Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier :)

We’re expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure. We’re especially keen to talk to Staff Engineers (backend) and Senior AI Engineers (e.g. LLMs and the scaffolding around, computer-use agents)

Even if we don’t have a role out your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

More info at https://www.tandemhealth.ai/recruitment

Feel free to reach out to john.moberg@tandemhealth.ai if you have any questions

CampusOptics | Product Engineer | Hybrid ~2x/wk | Austin, TX | Full-Time

CampusOptics is an environmental health and safety platform for universities. We're hitting product market fit, quickly adding customers, and looking to add another product engineer to our engineering team of 5.

Most importantly, you're excited to work in a close-knit team to build features without bureaucracy and make a big impact in our Rails/Hotwire application. And you'll influence a product that makes a material impact on campus safety. The ideal candidate would have UI/UX/product sensibilities, and we're open to all levels of seniortiy.

I'm a founder, the CTO, and the hiring manager for this role. I got my professional start on "Who's Hiring March 2011", so I'm partial to candidates from here :)

You can see more details here: https://gist.github.com/jpcody/82f33ff98afedaca7018082933019...

To apply, I'd love to hear why you think you'd be a good fit and what excites you about the role at jcody@campusoptics.com.

Ageospatial www.ageospatial.com/jobs | AI Solutions Architect - Founding Engineer | Remote or EU/Switzerland

Mindset:

- This will be the most challenging (but rewarding) build of your life

- You'll be joining a kind & smart fully remote team of engineers that delivers at the highest level

- You're not here for the early startup paycheck, you know the pay is (VERY) low at the start, instead, you're in for the long game with (equity and profit-sharing) and want to build the most impactful product of your career

- You are ready to be 'all-in', this will be fun and you'll be fairly rewarded

- You think like an architect, execute like a builder and vibe-code like AI

- You ship fast, high standards

Tech: Agent-as-a-Service architectures, Agentic AI, Langchain, LangGraph, Distributed/Parallel computing, Memory management, Autoscaling, AWS, Kubernetes, Microservices, Message Queues, Django, Node, DuckDB (optional), WASM (optional), WebGL (optional)

Process:

1 - Email to contact@ageospatial.com with subject line: FOUNDING AI ENGINEER - FIRSTNAME LASTNAME. Include: CV/LinkedIn, GitHub/portfolio/project with impact or revenue. Keep it short.

2 - 10-minute intro call.

3 - 30-minute system design call.

4 - 10-minute team fit call.

5 - Paid two week trial as a contractor → founding engineer role.

Silkline | Onsite, Chicago/Seattle (5 days/week) | Full-time | Salary+Equity

We need help! and are looking to hire multiple full-stack or frontend engineers at Silkline.

Today, the way modern hardware supply chains work is like fax woke up in 2025 - spreadsheets, email, PDFs, and a lot of sadness. We are building AI-first platform to power the future of supply chains, focusing initially on the rising defense, space, and nuclear sectors.

Over the last year, we have grown considerably (5x'ed customer count) and brought on some massive logos in the industry. Join me and our deeply customer and product-oriented team, which has been shipping incredibly fast.

Stack: Typescript, React, Hasura, Trigger.dev, AWS, Pulumi, Elbow grease

Reach out to hn@silkline.ai or apply: https://jobs.gem.com/silkline/am9icG9zdDrLwsEQTKKa02Ut_F9kgz...

Tufalabs | COO & Senior research/engineers | Full Time | Zurich, Onsite | 100-130k CHF | https://tufalabs.ai/

Tufalabs is an independent AI research lab in Zurich, focused on high-impact academic-style AI research and large-scale LLM development. We care about compute (currently, 6× DGX B200, 2× NVL72 GB200 incoming). Our mission is to push the frontier of AI science while open-sourcing results and building the engineering muscle to pre- and post-train cutting-edge language models. The ultimate goal is automating AI research, while keeping in mind AI alignment and safety. The ultimate goal is to make sure AI goes well for humanity.

I am looking for a COO to help scale from ~10 to ~15 people.

Ideally you care about AI research, you are excited about the idea of helping us move faster, you like to keep red-tape low, you are a technical person who can create automated processes, and have experience owning and running operations at a startup.

We are also open to senior researchers, comp negotiable

If interested, email me at benjamin at tufalabs.ai

StorPool | Senior Software Engineer - Storage Core (C/Linux) | Remote (UTC-1 to UTC+5) | Full-time | Multiple roles

StorPool is building the future of data storage. Our software runs at the heart of modern clouds, delivering <100µs latency, 113M+ IOPS per cluster, and 99.999% availability. We're profitable, self-funded, and our customers love us (NPS off the charts).

We're looking for a Senior Software Engineer to join our Core Storage team. You'll tackle genuinely hard problems: writing custom Linux drivers, optimizing lock-free data structures at nanosecond scale, building fault-tolerant distributed algorithms, and debugging issues that go all the way down to kernel internals. This isn't CRUD work - it's systems programming at its most challenging.

Competitive salary, meaningful time off, yearly education budget. Our most senior engineers spend their time solving the hardest technical problems hands-on, not in meetings.

If you get excited about shaving microseconds off I/O paths and building infrastructure that simply doesn't break, we should talk. Apply here: https://storpool.com/force/senior-software-engineer-storage-...

Channable | Utrecht, Netherlands | ONSITE

Channable is a fast-growing B2B SaaS platform that offers a fully integrated way to market your products online. We empower marketers and online businesses to manage, scale, and optimize their marketing.

We're looking for Python Software Engineers in multiple teams. More details about our jobs here: https://jobs.channable.com/?jobs-035754a9%5Btab%5D=Engineeri...

Our stack includes: Python, Haskell, Rust, PostgreSQL, Redis, Nix, Terraform, Nomad, Ansible

Do you want to read more about our engineering culture? Then have a look at our popular tech blog: https://tech.channable.com

Additionally, you can also take a look at some of our open-source work at https://github.com/channable to get a feeling of how we work together and what our code looks like.

Matterworks.ai | ML Scientist & Engineering | Remote or Hybrid (Boston/Somerville MA)

At Matterworks we are building AI tools to extract insights from the ever-growing corpora of biological data and to unlock opportunities in therapeutic discovery, development, and manufacturing. We are building large-scale deep learning models of biological data to predict the phenotype and behavior of biological systems.

Principal ML Scientist - https://jobs.ashbyhq.com/matterworks/abd91496-f8dc-4a14-aa80...

Staff ML Scientist - https://jobs.ashbyhq.com/matterworks/460eb0dc-61fb-4b6e-843c...

Principal Software Engineer - https://jobs.ashbyhq.com/matterworks/e520eef6-0bfe-4c9b-afc8...

Smart 11 | React Native Software Engineer | Netherlands (Breda) / Remote | Part or Full time | smart11.ai

Smart11 helps soccer players to become more intelligent on the field. We're a small team of 3 engineers and are looking for a react native developer to continue development on our mobile app.

Our soccer learning methods rely heavily on video (and a touch of vision AI) to help players learn from their own actions on the field. The app is crucial in that process, and used hundreds of hours a week by clubs and pro players alike. Your work might directly contribute to the improvement of soccer players around the world!

We're a productive, balanced team, and are looking for someone with a builder mentality. Apply at connect [at] smart11.ai, or send me a PM (I'm the CTO). If you're interested but are only experienced in related techniques, please do get in touch, we like to invest in the right people!

PostHog | Full-Time | Product engineers, backend engineers, Technical AMs | REMOTE (all remote) | Hiring GMT-8 to GMT+2

PostHog helps engineers build better products by combining product analytics, feature flags, session replay, a data warehouse, CDP and many more.

* we have a public handbook (posthog.com/handbook) if you want to learn how we work, pay and more in complete detail.

* we are growing through more autonomy and transparency not through process.

* we have a ton of scale and a bunch of super interesting technical problems to solve

* we're building 20 more products over the next couple of years, so you could end up building one of those

* we need: product engineers, developer who loves writing and a developer who can do marketing, backend engineers, AI product engineers, technical account managers and technical customer success managers.

https://posthog.com/careers

CredCore | Engineering | Full-time | Remote/Onsite | www.credcore.com

CredCore helps companies analyze Credit Agreements using AI. We have two roles open: (1) Engineering Lead, and (2) Front-end Lead/Architect. Both positions require 10 years of experience. You should be familiar with design patterns and software architecture, and TypeScript AND Python. We prefer candidates based in the US or Europe for both roles (for time zone reasons), but can consider other locations as well. If based in India, we'd like you to join our Pune office.

If you’re interested, please email careers@credcore.com. A cover letter is not necessary. But please share your resume and links to your GitHub/GitLab/StackOverflow/other profile, or blog/papers, or other portfolio we can review before setting up the interviews.

Diffusely | Backend Software Engineer - Python | Full-Time | Hybrid (Paris, FRANCE)

Diffusely is an AI media enhancement company that leverages its cutting-edge media processing platform to develop tailored products for specific verticals: Carcutter for the automotive industry, Autoretouch for the fashion one and Propershot in real estate.

As a Backend Engineer at CarCutter, you will be joining the global #1 visual AI editing and optimization solution for the automotive industry, used by customers from all around the world. Due to our steady growth, we are now expanding our passionate & motivated CarCutter team.

https://diffuselycompte-1738823875.teamtailor.com/jobs/55872...

Contacts: henri[dot]hannetel[at]diffuse[dot]ly

Multiply | Python + SQL Software Engineer | On-site | Mauritius

We build repricing software that keeps online sellers on top of their competition on 130+ marketplaces.

Stack: Python, Postgres, FastAPI, SQLAlchemy.

Our office is beautifully located in Mauritius. We sponsor visas and handle all relocation/immigration.

Apply: jobs@multiply.cloud

Freed | Software Engineers (Fullstack / AI), EM / Tech Lead Manager, Product Design, Product Manager | SF | https://getfreed.ai | Full-time

Doctors are overworked, burnt out, and are quitting in masses.

I'm head of engineering at Freed, where we combine clinician love with the latest AI tech and intense execution to create products that make clinicians happier.

Our first product is an AI scribe that automates medical documentation.

- Acquired 20,000 paying and loving clinicians, >$20M ARR in under two years

- Generate 70,000 patient notes daily using ASR and LLMs, and have saved clinicians 2.7 million hours

- Created a consumer-grade UX, with greater enthusiasm than any product I've seen (https://love.getfreed.ai/b2xGQ1)

- Raised $30M led by Sequoia Capital, and are rapidly expanding our product offering

- Build at the forefront of AI (e.g. https://www.getfreed.ai/ehr-push, an AI agent for integrating with EHRs)

Our engineering culture emphasizes speed, end-to-end ownership, responsibility, and independence. Our tech stack is React and TypeScript / Node.js.

Apply here: https://www.getfreed.ai/careers?utm_source=AOxjbOpE3X

String (https://www.usestring.ai/) | Founding Engineer | ONSITE - NYC, SF | $170k-220k salary + equity and benefits | Will sponsor any visa

Collecting data from the web is painful with custom scripts everywhere, Cloudflare roadblocks, and pricey infrastructure.

I’m Rohit, the CEO at String, where we are building the first scraping platform that just works. In the last two years, with a small team of five, we have:

- Acquired dozens of enterprise customers generating 7 figures of ARR

- Built infra to reliably scrape 30M+ pages per week

- Raised a seed round from leading VCs/angels in the space while being cash flow positive

Our engineering culture emphasizes speed, ownership, and autonomy. We are building at the forefront of scraping and AI and would love to meet if this sounds interesting to you.

Apply here: https://string-ai.notion.site

SalesJack | Data Engineer | Hybrid (Hamilton/GTA Canada) | C$130K-C$150K + equity and benefits | salesjack.com

SalesJack is a sales software platform (CRM, Prospecting Service) for independent businesses in the construction supply industry. We are growing quickly and profitably. Our founding team and customers are based in the US, and we aim to grow engineering capabilities in Canada.

This role is responsible for leading our data pipelines development. SalesJack operates data ETLs from sources like client ERPs (enterprise resource platforms) and municipality open data to power our CRM features. You will collaborate directly with founders and lead engineers at the company and help:

- Enable scalability in our pipelines as we onboard more customers and data sources

- Setup visibility, monitoring and alerting in all parts of our ETL processes

- Allow plugging in AI led transformations at the right stages of our pipelines, and enable this to be done easily

- Lead RnD effort for AI toolings that transform a lot of manual work in the industry

We are looking for:

- 3+ years of data wrangling and pipeline scaling experience. We prefer if you have done so with a focus on reliability and efficiency (both in terms of compute and costs) in the past.

- Someone who loves experimenting with data, regularly tries out new tools, and enjoys exploring the possibilities of AI and machine learning—especially large language models (LLMs)—we want to hear from you.

Our hiring process will be:

1. Initial call with our founding engineer to briefly discuss your experience and introduce SalesJack ~ 30mins

2. Technical Exercise (this will a live coding on a screen-sharing call where we will ask you to work on some problem) ~1.5 hours

3. Call with one of our founders to see cultural fit ~ 30mins

4. Offer

We aim to have the full process take no more than 2 weeks from the initial call.

This is a hybrid role, with in-person 2-3 times a week in Downtown Hamilton, Ontario.

Apply at https://jobs.ashbyhq.com/salesjack/5645b4c3-dc1b-4021-83d4-2... and mention Hacker News

Consigli | London, UK (Vauxhall) | Full-time | Onsite (5 days/week) |

We’re building AI to transform how building engineering and real estate projects are designed and delivered.

Hiring for multiple roles:

* Senior Machine Learning Engineer – Apply the latest ML/AI research to production, end-to-end lifecycle from data to deployment.

* Software Developer / MLOps Engineer – Build and maintain ML pipelines, infra, APIs, and monitoring at scale.

* LLM / NLP Engineer – Develop and deploy NLP/LLM solutions (Transformers, semantic pipelines, RAG, fine-tuning).

* Frontend Developer – Build intuitive interfaces in Svelte/React for AI-powered engineering tools.

https://www.consigli.ai/careers. For any questions: valentin (at) consigli.co.uk

Radar Labs | Software Engineers (SRE, data platform, backend, full-stack, mobile) | Remote (US), NYC | Full Time | https://radar.com

- Radar is the geo-location dev tool

- Doing 1B+ API calls per day

- Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).

- We're based in NYC with our HQ in Union Square and remote friendly (US)

Interesting things we're working on:

- HorizonDB, our Geospatial database written in Rust

- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML.

- Extracting raw map data from satellite maps and the web leveraging ML and AI

- Anomaly detection to identify spoofed locations

- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time

- Multi-Region AWS K8s deployment, 99.99%+ availability

- Frontend tools to visualize and debug location data at scale

Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com

Clutch https://www.clutchapp.io - building future of padel with AI cameras | Fullstack Engineer, Head of Product Design, Hardware Engineer | Remote (our team is spread across GMT -4/+2/+8 timezones) | Full-time

We are Clutch, building an automated videographer and coaching experience for padel players. We are small but quickly-growing startup with cameras in over 30 clubs around the world. We are hiring for three key positions to enhance our app and our self-designed camera.

Fullstack Engineer: Frontend(Mobile)-heavy position. Expertise in React Native, PostgreSQL, Amazon lambdas or similar, Amazon s3 or similar. Experience with UI design is a big plus.

Head of Product Design: Expertise in product analytics, modern design tools and design systems. Strong record leading end-to-end design for digital products.

Hardware Engineer: Expertise in embedded systems (primarily with SoCs, e.g. RPi or Jetson Nano), video processing and 3D modelling.

For all roles, experience in sports tech or passion for racket sports is a big plus.

Contacts: Kirill Paramonov (CTO) kirill[at]clutchapp[dot]io, Kári Gunnarsson (CEO) kari[at]clutchapp[dot]io

SpotHero | ONSITE (Hybrid-schedule) in Chicago or Toronto | Full Time

SpotHero is the leading marketplace for parking reservations. We help drivers easily reserve parking for commuting, events, or any reason they are out and about.

Our approach to onsite is flexibility first and much of our time is WFH. Feel free to apply online or reach out to me at tom dot janofsky at spothero dot com.

We’re hiring for a Sr Business Analyst, Sr IT Engineer, and Sr Security Engineer

https://spothero.com/careers/

Trustle | Senior Backend Engineer | Remote (US) | $150k-$200k + equity

Early-stage startup building cloud access management for Zero Standing Privileges through just-in-time access and intelligent entitlement management.

You'll: Design intelligent scheduling engines and data pipelines for just-in-time access across AWS/GCP/Azure/SaaS platforms. Build scalable integration pipelines connecting dozens of cloud providers and enterprise tools. Architect data models mapping complex permission relationships across multi-cloud environments. Ship fast with AI tools while maintaining quality. Direct impact on product direction and technical strategy.

You have: Strong Python/backend, cloud platforms experience, shipped complex systems, Postgres/data modeling/ELT pipelines at scale, early-stage mindset, strong opinions loosely held.

Bonus: FastAPI/Pydantic, deep IAM/security knowledge, BigQuery, Kubernetes.

Why us: Meaningful equity, direct product influence, remote-first, senior team where your voice matters. careers@trustle.com | https://trustle.com

Ontic | Principal Software Engineer - Full Stack | Full-Time | Remote (US) | 220k-240k USD + bonus + equity

Ontic provides software that helps corporate and government security teams identify threats, assess risk, and respond faster to keep people and organizations safe.

Seeking a passionate full stack engineer with deep expertise across frontend and backend systems. You thrive on solving complex technical challenges, architecting scalable solutions, and mentoring teams to raise the bar.

Apply today: https://jobs.ashbyhq.com/Ontic/1b077490-2d07-4f2a-9ff9-7ddd3...

SewerAI | Full-Time | Hybrid (Walnut Creek, CA — Tues/Thurs in office) | https://www.sewerai.com](https://www.sewerai.com

SewerAI is an AI-powered data platform transforming how cities, contractors, and engineers inspect and manage underground infrastructure. Our mission is to make “dirty, dull, and dangerous” sewer inspection work safer, smarter, and more efficient through cutting-edge computer vision, cloud collaboration, and machine learning.

We’re hiring a Staff Software Engineer to help architect and scale the core systems that power our AI-driven inspection and risk analysis tools. If you enjoy tackling complex technical problems and want to see your work directly improve how cities operate critical infrastructure, we’d love to hear from you!

We’re especially interested in candidates with experience in:

* Building and scaling distributed systems or large-scale SaaS platforms * Machine learning / computer vision deployment in production environments * Cloud infrastructure (AWS, GCP, Kubernetes, etc.) and data pipelines * Working in fast-paced, early-stage environments where collaboration and ownership matter

If you’re excited about applying advanced technology to real-world infrastructure challenges, check out the role here: https://jobs.ashbyhq.com/sewerai/Staff-Software-Engineer

Waymo | Mountain View, San Francisco, Seattle, Los Angeles, New York | London, Oxford, Warsaw | Full-time | ONSITE + HYBRID | https://waymo.com/careers

Building autonomous driving software at production scale across perception, prediction, planning, simulation, and the systems that power a commercial ride-hailing service.

Hiring now, Software Engineers and ML Engineers:

* Perception, Prediction, Planning ML Train and ship models for scene understanding and behavior, own E2E pipelines, and make the Driver smoother and safer. Examples: Senior ML Engineer, Prediction; Senior Software Engineer, Applied ML, Planner Technology; Senior or Principal roles in Perception Systems and Semantics.

* Simulation, World Modeling, Evaluation Push sim fidelity with foundation models, 3D reconstruction, sensor simulation, and realism metrics at massive scale. Examples: ML Engineer, Simulation; Senior ML Engineer, Simulation Realism; Principal Software Engineer, Simulator; Senior SWE, Model Evaluation; Research Scientist, World Modeling.

* Backend, Fullstack, Commercialization Build the backend and apps that run ride-hail at scale, from fleet orchestration to pickup and dropoff UX. Examples: Backend SWE, Fleet Orchestration; Backend SWE, Pickups and Dropoffs; Principal SWE, Commercialization; Senior Backend SWE; Fullstack TLM/Staff; Senior Frontend SWE, Simulation; Senior SWE, Data Tooling.

* ML Platform, Data Infra, and Data Science Power model training and evaluation with petabyte-scale data systems, lineage, feature stores, and decision science. Examples: Senior SWE, ML Data Infra; Senior SWE, Perception Data Primary; Senior Product Data Scientist; Data Engineer; Senior Data Scientist.

US comp examples from postings: Backend SWE $170k–$216k; Senior or Principal SWE and Staff-level ML roles commonly $204k–$421k base, plus bonus and equity. Roles vary by location and level.

Apply: https://waymo.com/careers (mention HN). Or, directly contact me (recruiter at Waymo) mhamel[at]google[dot]com

Oryo.io | Founding Engineers / Staff Software Engineers | Cybersecurity | Remote (US, ideally near SF/Seattle/Boston) | Full-time | 180-220K + Equity & Benefits | No Visa sponsorship.

Oryo helps CISOs secure GenAI/Agentic AI. We enable enterprises to address AI tool misuse, privilege escalation, and AI supply chain risk, giving security teams the visibility and control to manage agent behavior and secure data access.

*Engineering challenges* - Build pipelines to monitor config + real-time agent behavior - Detect privilege escalation, tool misuse, attack paths, supply chain vulnerabilities, compliance risks - Explore gaps in protocols like MCP + A2A, interoperate with existing security stacks - Build AI-centric security products from 0→1 - Build using a variety of modern languages, frameworks and cloud and ai native architectures.

*You are* - Full-stack engineer with 5+ years experience in infra, data, or security systems - High bar for engineering excellence, ownership, and system design - Bonus: prior experience in cybersecurity, infra, data science, front end, or AI security

*Why join* - Competitive pay ($180–220k) + early equity - Remote with proximity to SF/Seattle/Boston - Work on a new frontier in security, where your judgment and code shape the company - Culture: respect, transparency, autonomy, and excellence

- More info : https://docsend.com/view/5xw8iv8y48wzztxw

To apply: email swaroop [at] oryo.io

InnoVint | Wine Production Software | Remote (US-based) | FT | Senior BE Developer (Django/Python) We're looking for another great back end developer to join our team. We are a company of 30 large and have been operating for over 10 years. We are not VC backed and operate as an independent company with startup mentality.

- You’ve built and scaled multiple APIs in production.

- You’ve deployed eventual consistency in production and know how to make it work for real users.

- You have experience mapping event-sourced backends to domain-rich applications

- You’ve profiled performance bottlenecks from the HTTP request to the database

- You’re fluent in relational databases (we use Postgres) and comfortable with non-relational stores (perhaps Redis).

- You’ve written gnarly database queries and have a penchant for building fast, efficient systems

- You’re comfortable in Python/Django and modern cloud environments (GCP/AWS/Azure).

- You thrive in small, distributed teams where ownership and initiative are key.

https://www.innovint.us/careers/sr-backend-engineer/

ArcPrime | http://arcprime.com/ | Remote | Full Time | Full Stack Developer

ArcPrime just closed a seed round to build the best-in-class AI tools for Intellectual Property attorneys.

We have a world-class team of 6 engineers (CEO is an attorney as well) uniquely positioned to win the entire market. We thrive on execution speed, know our customer and domain to the most intimate detail, and are relentless.

We empower our people to do their best work and grow to their fullest potential. We value impact above all else. We offer highly competitive salaries and top-of-market equity. We plan on hiring fewer than 10 engineers for the lifetime of the company. If this sounds exciting to you, please apply!

Stack: React, Typescript, TailwindCSS, and Google Cloud

Email me with your resume to apply: jon @ domain

Job description: https://docs.google.com/document/d/1R3JZYV8yVMjgspVDDYHwkTZk...

Devyce (YC S22) | UK (remote/onsite/hybrid) | Senior Frontend/Fullstack/Backend Developers | Full Time We're redesigning the business phone network from the ground up. Starting with mobile apps and a softphone, we're losing the jargon (who cares what an IVR is?) and building features customers actually want. We're getting big enough to start splitting into more focused teams and there's a few different areas that we need; our infra needs a lot of work, we have big dreams for some cool AI agent/pipeline work and there's still a lot of more fundamental phone system specific problems we need to solve.

We try to be flexible around work and don't believe in regular 60-hour weeks. One key aim of our product is to help employees maintain a healthy work/life balance (who wants to be disturbed by business calls on the weekends?) in an age of remote and hybrid work. The founders lead by example, with all of us having worked 4-4.5 day weeks at times in order to spend time with our children.

We're looking for full stack software engineers - doesn't matter if you're much stronger in either the front or back end, but you do need to be able to build all the parts of a feature - there's no "front end team" once the backend is done. There is naturally work that's much more one sided, so you won't be stuck for months on the front end if you prefer the backend, but we're still a small startup so we expect you to get stuck in and help out where you can!

You'll need to visit our London office roughly once a month.

Email alistair.clark@devyce.co.uk and mention that you saw this on Ask HN: Who is hiring?

Quadrature Capital | London (In-person) | Data Engineers

Quadrature is a technology-driven company in the algorithmic trading space, utilizing advanced machine learning and large datasets to predict financial market trends.

Our website: https://quadrature.ai.

What sets us apart: - Small, agile team (under 200) - Tech-focused with our own data centers and hyperscale fleet of GPUs/CPUs/storage - No traders - Single, internally-transparent P&L - Deeply collaborative culture - Mission-driven climate change foundation: https://www.qc.foundation/

We've established a Data Engineering Team, integrating market data, alternative data research, and data platform team, and are hiring Data Engineers to manage and refine the crucial market data sources that drive our trading strategies. A role brochure can be shared for reference.

If you have any interest in learning more about the role, or Quadrature in general, please feel free to message here: applications@quadrature.ai

Phosphor | NYC/Remote | Full Time | Founding Engineer | $150-225k + Equity

Phosphor builds recursively self-improving systems (via malleable software and natural language interfaces) to enable the efficient development and financing of the physical world (infrastructure, energy, real estate).

Our product is built around a powerful object model which combines document editors with proprietary programming languages for financial modeling, computable contracts, etc, in order to build one of the more unique RLHF feedback loops that we've seen to date.

A primary technical bet is that if we can productize version control properly, we can capture annotated "diffs" of user information with user-validated annotations. By doing so, we create path-dependence, which enables us to specify system-level goals for agents to solve for.

Our product is similar a combination of Linear and Wolfram, with components and objects that enable advanced financial modeling, legal/regulatory analysis, and geospatial analysis of infrastructure development opportunities.

We're venture-backed by one of the best deeptech funds in the market and are hiring for roles spanning product engineers, CRDT wizards, and compiler/calculation engine leads.

Job listings can be found at the bottom of phosphor.co.

Resilinc | resilinc.ai | FULLY REMOTE (US) | Full-time | Enterprise Solutions Architect and Sr Software Engineer - NEW AI Agent Deployed Services Team

At Resilinc, we’re pioneering the intelligent, autonomous systems that will define the future of supply chains. Our cutting-edge Agentic AI enables global enterprises to predict disruptions, assess impact instantly, and take real-time action — before operations are even touched. Recognized as a Leader in the 2025 Gartner® Magic Quadrant™, we are trusted by marquee clients across life sciences, aerospace, high tech, and automotive to protect what matters most — from factory floors to patient care.

Enterprise Solutions Architect: https://jobs.lever.co/resilinc/1de72f37-2e8e-434a-ac0e-9add6...

Senior Software Engineer: https://jobs.lever.co/resilinc/2deb2df5-2992-4dde-8992-bc366...

Our Careerspage: https://careers.resilinc.ai/

CrazyGames | https://about.crazygames.com/ | REMOTE (in Europe) | Full-time | Multiple roles

With recent technologies such as WebGPU and WebAssembly, the browser is quickly becoming a powerful gaming platform. High-quality 3D graphics and near-native level performance are now possible without the need for downloads, apps, or platform-specific development. Our browser games platform is already reaching more than 45 million people per month. We are self-funded, profitable, remote-first, and fast-growing.

We are currently looking for multiple people to bring our product, data, and adops to the next level.

Please note that we're looking for people who can work on a European timezone and are ideally based in Europe (which includes the UK for those in doubt).

* Product Manager: https://crazygames.recruitee.com/o/remote-product-manager-ga...

* Data Analyst: https://crazygames.recruitee.com/o/remote-data-analyst

* Programmatic Manager: https://crazygames.recruitee.com/o/programmatic-manager

KSC Trading | Remote | Full-Time | Senior Backend Software Engineer | $150k to $200k USD

KSC Trading is a propietary algorithmic trading firm founded in 2020. The company creates software to engage in automated trading in sports and prediction markets. It has been profitable since the first year of inception, and has significant and clear growth available. The initial focus has been on statistical arbitrage and liquidity provision.

The role would include maintaining and expanding the trading infrastructure. Example tasks would be integrating new exchanges, optimizing backtest speed/cost, integrating a new data source into backtesting, tracking production trade latency, etc. Current tech stack is based on Java, Google Cloud Platform, and Postgres. The team remains very small, and you would be working very closely with the founder.

Location: Remote with at least 4 hours overlap with US east coast working hours.

The company currently donates 20% of its profits. To apply reach out at hiring@ksctrading.com with your resume.

Meilisearch | 2 senior roles |Full-time | Hybrid (Paris, France) - Remote EU

Platform Engineer - https://jobs.lever.co/meili/b2d59837-20d6-470d-899b-8ddc081f...

Senior Software Engineer Rust - https://jobs.lever.co/meili/736ec392-9070-49b9-9a63-7db05a1c...

Akkio | US Fully Remote | Full-time | Backend and Senior Web Fullstack

Akkio is building beautiful, consumer-grade AI-first workflows for media agencies: audience building and distribution, measurement / campaign analysis, media planning, etc. Generative and traditional AI/ML. See https://www.akkio.com

* Senior (i.e. principal) web full-stack engineer; 160k-240k plus equity. Looking for an passionate & experienced candidate who's run projects, guided architecture, lived through framework upgrades and large code refactors, and wants to build a great customer experience; Vue.js, Typescript, Node.js. https://www.akkio.com/jobs/senior-frontend-engineer

* Backend engineer; 110k-160k plus equity. Looking for a passionate candidate who's interested in at least two of: statistics, code generation, LLM usage, traditional AI/ML, large data processing, distributed systems development. https://www.akkio.com/jobs/backend-engineer

All candidates must be authorized to work in the US

JWP Connatix | AI Software Engineer | REMOTE (EU) | Full-Time

JWP Connatix is the most comprehensive independent video technology and monetization platform, helping broadcasters, publishers, and advertisers deliver premium streaming and online video experiences while maximizing video revenue across all screens. The company offers an end-to-end platform that streamlines live and on-demand video with hybrid monetization models, unique data and insights, unmatched customer service, and the largest independent premium video marketplace, providing the entire media ecosystem with enhanced scale, transparency, and revenue.

We are looking for a skilled and adaptable AI Engineer to join our AI Proof of Concepts team at JWP Connatix. You'll be responsible for implementing AI-First development methodologies, integrating sophisticated AI tools into our software pipeline, and rapidly building MVP prototypes that demonstrate innovative solutions. This role offers the opportunity to work at the cutting edge of AI-integrated development while delivering high-impact prototypes in a fast-paced, iterative environment. The ideal candidate thrives in rapid prototyping environments, has hands-on experience with AI tool integration, and enjoys the challenge of quickly turning concepts into working demonstrations for stakeholder validation. Candidates should also have know and work with AI code generation tools (Claude Code, Cursor, Copilot, etc).

If this sounds like something you'd be interested in please apply!

https://jwpconnatix.com/careers/job-posting/?gh_jid=7257043

Checkr | Software Engineer (multiple) | Hybrid | San Francisco, CA & Denver, CO| Full-time

About Checkr Checkr builds people infrastructure for the future of work. We've designed a faster—and fairer—way to screen job seekers. Established in 2014, Checkr puts modern technology powered by machine learning in the hands of hiring teams, helping to hire great new people with an experience that’s fast, smooth, and safe. Checkr has over 100,000 customers including DoorDash, Coinbase, Lyft, Instacart, and Airtable.

A career at Checkr means collaborating with brilliant minds, disrupting an industry, and opening channels of employment to often overlooked candidates. Checkr is recognized on Forbes Cloud 100 2025 List and is a Y Combinator 2024 Breakthrough Company.

Senior Software Engineer: https://grnh.se/gkrfz0sa1us

Senior Data Engineer: https://grnh.se/z3u5jlmv1us

Staff Product Manager: https://grnh.se/pn5azwiq1us

Cloud Security Engineer: https://grnh.se/tdvk6wts1us

I'm a Sr. Staff product manager here in our SF office 2x/wk. Happy to answer questions you might have, I'm easy to find on LinkedIn if you need to know more.

All jobs: https://grnh.se/f3c7e1c61us

Konvu | https://konvu.com/ | Software Engineer | FULLTIME | ONSITE | Paris, France

Konvu delivers AI vulnerability management with evidence-backed agents that integrate seamlessly with your existing AppSec scanners, autonomously dismiss non-exploitable findings and surface only vulnerabilities that truly matter. Teams cut backlog and stay focused on real impact with no changes to scanners or workflows.

Behind Konvu are founders with deep roots in the security industry. As early employees at Sqreen YC W18 (acquired by Datadog), we have firsthand experience in driving security solutions from concept to global impact.

We’re looking for:

* Product Engineer https://jobs.ashbyhq.com/konvu/be7be978-08be-4672-a9e5-a559e...

* Product Engineer (AI Agents) https://jobs.ashbyhq.com/konvu/be028b43-a7a7-4f0a-b968-320dd...

* Head of AI https://jobs.ashbyhq.com/konvu/403ecd3d-7845-47d7-b24c-1fe18...

* Vulnerability Research Analyst https://jobs.ashbyhq.com/konvu/b9fdec0b-61f1-4d50-aa30-41e1b...

Read more about how we're building Konvu the YC-way: https://konvu.com/blog/yc-culture

OpenRent | London, UK | Full-Time | ONSITE+PART REMOTE | https://www.openrent.co.uk

What sucked the last time you rented a house or flat? Come and fix it.

OpenRent is a force for good in an industry tarnished by rip-off agencies. Enabled by an unrelenting focus on technology, we now let more properties than any agency in the UK. In the last 12m we let over £50 billion worth of property, to over 7 million registered users, without ever charging any admin fees.

You'll be working on solving every aspect of the rental journey, from models to predict the right price of a property, to building the future of property management, all to help tenants find their dream home, and landlords their ideal tenant.

We're VC backed, profitable, and have plenty of ambition to maintain our fast growth in this absolutely massive market.

Roles currently available:

- Senior UX/UI Developer | Equity | 100k+ (based on experience) + quarterly bonus

All roles visible here: https://www.openrent.co.uk/jobs

ToucanTix | Senior Ruby on Rails Developer | REMOTE (EU/US timezones preferred)

Your code will run the gates at zoos and theme parks across Germany and the USA. When families scan tickets, when capacity limits kick in based on visitors and available resources (staff, equipment, facilities), when dynamic pricing adjusts for weather - that's our Rails app making real-time decisions for thousands of visitors daily.

We're 5 engineers at ToucanTix (sister company Combase has 80+). You'd have serious ownership and architectural influence from day one.

Technical challenges that actually matter:

Multi-tenant architecture supporting 100+ venues with wildly different business logic. Offline-first POS that syncs flawlessly. Complex pricing rules (weather + season + capacity + customer type) that need to stay performant. Hardware integrations with access control and payment systems.

Stack: Rails 7+ API with GraphQL (graphql-ruby), PostgreSQL doing serious heavy lifting with multi-tenant architecture, Redis for speed-critical stuff, SvelteKit frontend (if you're full-stack curious), Google Cloud infrastructure (Cloudtasker, Cloud Storage), RSpec/Capybara keeping everything bulletproof

You: 5+ years Rails. Strong at PostgreSQL optimization. Have architected systems for performance and scale. Comfortable owning technical decisions.

Us: Real ownership. No layers of management. Async-first remote culture. Profitable company, not burning VC cash. Your work has physical impact - people literally can't enter the attraction if your code breaks.

Full details: https://www.toucantix.com/careers/senior-ruby-on-rails-devel...

Apply: jobs@toucantix.com - Send CV + one technical challenge you're proud of solving. Put in subject line.

Frequenz Energy-as-a-Service GmbH | Full-Time | Berlin/Hybrid-Possible, Germany

We are a technology company developing groundbreaking solutions that help companies to rapidly transition from being passive electricity consumers to becoming fully self-sustaining prosumers, capable of leveraging various renewable energy assets.

We are currently looking for Rust and Python software developers to join us in Berlin.

Our homepage: https://www.frequenz.com

Apply here for Rust: https://www.frequenz.com/jobs/senior-rust-engineer and here for Python: https://www.frequenz.com/careers/senior-python-developer

Feel free to attach links to your code examples from github, gitlab, or the like to your application.

These roles are not fully-remote. These are based in Berlin, with a possibility for hybrid-model, which can be discussed during the course of the interview.

(PS: If you choose to apply, we would appreciate if you could mention that you have come from HN :) )

Kaedim | Software Engineer, Machine Learning Engineer, Security Engineer, Customer Support Engineer, Product Manager, UX/UI Designer | Onsite | Full-time | San Francisco, Singapore, London | US & UK Sponsorship Available Kaedim is an AI startup building ML algorithms that turn images into digital 3d models. We are a group of ~10 looking to grow the team to help streamline 3d content creation for 3d artists and are already working with 1 of the top 10 games of all time! Using our AI and in-house art team, we have the most accurate, game-ready 2d → 3d asset generation pipeline. Currently, we are offering a 10x speed up to 3D asset creation pipelines of 200+ game developers and we are working with partners like Voodoo, Upland, Azra Games.

Check out our demo here: https://www.youtube.com/watch?v=tlQWFG1DLb0

We just launched our new product, Flow 3D! Check it out here: https://www.producthunt.com/products/kaedim?embed=true&utm_s...

Job descriptions and application link: https://join-kaedim.notion.site/

Tech Stack:

Product (web app, API): React, MySQL, NodeJS, Python, AWS

Machine Learning: Python, PyTorch, AWS

Kombo | Senior Site Reliability Engineer | Berlin, Germany | ONSITE | Full-time | €78k - €96k + equity

Kombo (YC S22) is the unified API for 100+ HR/ATS systems. We've grown from 0 to €7M ARR in 2 years and process data for hundreds of millions of people daily. Kombo is known in Berlin for our engineering culture that values quality and product-mindedness.

We're hiring our first Senior SRE to build and scale our infrastructure. You'll own Kubernetes, GCP, Postgres (terabyte-scale), and CI/CD while working closely with our product engineers—with opportunity to build and lead the SRE team as we scale.

Looking for: 6-8+ years SRE/DevOps, strong Postgres administration, Terraform, infrastructure-as-code, distributed systems, and cloud infrastructure.

Stack: Kubernetes, GCP, Postgres, GitHub Actions, Terraform (our philosophy is to keep it lean and efficient)

Apply: https://jobs.ashbyhq.com/Kombo/20d6cb5f-9b51-4a6b-8005-61344... (mention HN)

Strum AI | Founding/Lead Engineer | https://www.linkedin.com/company/strum-ai/

At Strum, we're reimagining technology that powers global supply chain using a fresh AI-first approach. Most supply chains are still stuck with Excel or enterprise tools that take months (and $MM) to adopt. Our mission is to lower that barrier — making it possible for any business, big or small, to access modern forecasting, inventory, and planning solutions in days, not months. We’re on our journey to democratizing supply chain technology. As our first engineer, you’ll be working with the founders (former Supply chain/tech directors at Amazon who have built key components of Amazon's supply chain) to develop the core product from the grounds up (involves application of LLMs, deep learning, and optimization). If you have mid to senior level experience in software development, have built SaaS applications, understand ML-Engineering, and love building 0->1 products, we would love to talk to you. Please reach out to us at: careers@strum-ai.com.

Location negotiable.

Scholarly | Software Engineer | Seattle, On-Site | Full-Time | $130k - $200k + equity + health benefits + equipment budget

Scholarly is building the HR operating system for higher education. We've built a software platform that enables our customers to make data-driven decisions and to automate essential processes like performance reviews, tenure processes, leave workflows, and more. We are a venture-backed seed stage company of experienced, motivated, and collaborative folks. We are backed by leading investors in the industry and working with some of the best universities in the US.

We're looking for a full-stack candidate without about 5 years of experience building web applications. We write Ruby and Rails, but we are considering candidates with other stack experiences. Engineering is based in Seattle and on site in Pioneer Square. Looking to get back to a collaborative, in-office culture post-COVID? Let's chat.

If interested, please apply here: https://jobs.ashbyhq.com/Scholarly/1835336e-2b79-4531-82a0-f...

Atrix | Head of Engineering | New York, NY | US Based | atrix.ai | Onsite (first 6 months), then flexible after, Fulltime

Atrix builds secure, scalable AI solutions to help pharmaceutical and medical device companies accelerate how life-saving therapies reach patients.

Head of Engineering * Build and scale the engineering team; lead hiring, mentoring, and culture-setting * Contribute directly to the codebase while setting technical standards * (Python, TypeScript/React, SQL/Postgres) * Translate business and product goals into engineering execution with strong delivery rigor * Shape architectural direction, ensure scalability, reliability, and compliance * Establish engineering operations (rituals, QA, incident processes) and align closely with product & business teams * Drive security, system design, and code quality excellence

Requirements: * 7–8+ years of engineering experience, with recent (2–3 years) hands-on leadership in startups (Seed–Series A) * Proven ability to hire, manage, and grow small, high-performing teams (5–10+ engineers) * Actively technical: recent production code contributions and ability to unblock engineers directly * Strong execution mindset from high-velocity startup environments

Why Atrix: * Build the engineering org from 0→1 * Partner directly with the CEO on business-critical impact * Mission-driven work accelerating life-saving medicine * Competitive startup benefits (health stipend, insurance, unlimited PTO, career growth)

Website: https://www.atrix.ai/ Job Description: https://jobs.ashbyhq.com/pear/c5f4c223-cb72-444b-ab89-403e7c...

Apply by sending your resume and info to Carina@atrix.ai

Picnic is kicking off a Hiring Sprint for Java Developers! At Picnic, we’re transforming the way people buy groceries with our innovative, app-only, and sustainable service. We’re looking for passionate engineers to join our diverse team at our Amsterdam HQ, where you’ll have the chance to make a real impact in a fast-growing scale-up environment.

What makes Picnic unique? We do everything in-house: from building cutting-edge forecasting systems and operating our first fully automated warehouse, to designing the electric vehicles that deliver groceries straight to our customers’ doors.

Want to fast-track your way into an exciting role at Picnic? Our virtual Hiring Sprint makes it happen!

Here’s how it works: Apply by October 17, meet your recruiter, complete a coding challenge, go through all interviews in just one day, get your offer within 24 hours

No lengthy process — just a clear path to your next adventure.

Apply now and be part of the future of groceries! https://grnh.se/pbkkez941us

Mission Control | Senior Full-Stack Software Engineer | Onsite - Ottawa, Canada | Full-time

Mission Control empowers explorers to advance their space missions. We innovate to make modern software viable to use in space, unlocking the potential of new scientific and commercial opportunities on Earth, Moon, Mars, and Beyond.

We are seeking enthusiastic candidates for the position of Full-Stack Software Engineer to play a key role in the development of Spacefarer - our Mission Control Software. We are looking for candidates who are passionate about space exploration and robotics; who want to contribute to growing a small company from the ground up!

If you are interested, please check out the role here: https://mcss.bamboohr.com/careers/65?source=aWQ9MTI%3D

pod network | Competitive salary + equity | Remote or on site in Athens, Greece | multiple roles | https://pod-network.notion.site/open-positions

We are an ambitious, early-stage Web3 startup building a revolutionary new layer-1 protocol designed to bring a Web2-like experience to Web3 systems. Our team is developing a chainless, blockless, and leaderless protocol that challenges the conventional notion of consensus. Read more about pod https://pod.network/

We are backed by a16z crypto, 1kx, and BBF.

If you're passionate about Web3 and want to help developers, businesses, and partners build on cutting-edge Web3 infrastructure, we'd love for you to join us.

We are looking for: Smart Contract Engineer (EVM/Low-Level Execution) | Business Development Lead | Content & Growth Strategist

Apply here: https://pod-network.notion.site/open-positions

DigiUsher | https://www.digiusher.com | Senior Backend Engineer | Remote (overlap with West Europe) | Full-time

DigiUsher is a multi-cloud data and AI cost governance platform. We work with AWS, Azure, GCP, and leading system integrators to help enterprises build sustainable, efficient, and profitable cloud solutions.

We're looking for a Senior Backend Engineer to join our core team. You'll play a key role in shaping product architecture, building scalable data integrations, and driving technical strategy as we grow. Ideal candidates are product-minded, detail-oriented, and proficient in Python with experience handling large-scale data.

Tech stack: Python (FastAPI, Celery, Polars, NumPy), PostgreSQL, ClickHouse, Kubernetes, Docker, Terraform, GitHub Actions

You will:

- Architect/build new data integrations and features

- Enhance existing integrations for performance and reliability

- Engage directly with enterprises to understand challenges

- Own responsibilities across the full product lifecycle in a fast-growing startup

Interview process: Screening call → take-home assignment (work relevant) → review → CEO/leadership chat → offer. Typically 2–3 weeks.

More info/apply here: https://wellfound.com/l/2Bywrm or reach out to me at gagan@digiusher.com

I'm the co-founder and CTO and will be personally handling recruitment.

Bluesky | Senior Go Engineers, Senior Machine Learning Engineers, Senior React Native Engineers, Fullstack Engineers | Remote | https://bsky.social/about/join

Bluesky is building an open internet protocol (https://atproto.com) and a flagship social app (https://bsky.app). We're a company of 30 with a strong focus on fostering a high-agency, talented team. The golang roles are focused on building the internal platform with a whole lot distributed systems engineering; the ML is working on our many recommender systems and feeds; the RN & fullstack engineers are working on the social app and internal moderation tooling, respectively.

If you think social media - and the internet - could be better, apply here: https://bsky.social/about/join

Chronograph (chronograph.pe) | Multiple roles | Full-Time | Remote (US) | $160-205K USD + equity

Chronograph was founded to bring next-generation technology to private capital markets. Through our suite of cloud-based analytics and data management solutions, we help many of the world’s largest and most sophisticated venture capital, private equity, and credit funds understand their investment performance in unprecedented detail.

Note that while these are remote-friendly positions, travel to our NYC HQ 3x/year for "team week” on-sites is required.

* Senior Software Engineer (Platform Engineering): Bring your experience in Platform Engineering, DevOps, SRE and/or related experience to a small cross-functional team automating ops, troubleshooting infrastructure, and creating first-class developer experiences. Expertise with the following tools/technologies is a strong signal of fit: Kubernetes, Prometheus, Grafana, Terraform, AWS, GitHub Actions, PostgreSQL, Node.js, Ruby on Rails, Nix, and Docker. Nice to have: prior professional experience in backend or full-stack developments, and open source contributions.

If interested, apply here: https://chronograph.pe/jobs/?gh_jid=4761923007&gh_src=1q1yyb...

* Senior Software Engineer I & II (Full Stack): Join a highly-driven team of engineers, contributing both as a technical leader and a hands-on full-stack developer. Own and lead technical projects from product ideation to successful execution. Expertise with the following tools / technologies is a strong signal of fit: React, Typescript, Node, PostgreSQL, and GraphQL.

If interested, apply here: https://chronograph.pe/jobs/?gh_jid=4802825007&gh_src=1q1yyb...

Cora AI | Founding Engineer | Remote (USA only; Bay Area / CA preferred) | Full-time | $150–200k + early equity

We’re building AI agents that help B2B companies scale customer relationships. We’re already live with several enterprise customers and receiving a lot of positive feedback: “I’m super excited!! You’re changing our lives!!” — Account Manager for emerging-enterprise (mid-market) accounts.

We are backed by Acrew Capital, Emerson Collective, Recall Capital, and angels from LinkedIn, BetterUp, Glean, and Scale AI. Strong pipeline beyond what’s already in production.

Tech: Python, FastAPI, React, Vite, Render (PaaS), Inngest (Orchestration)

Apply if you:

- Have real 0→1 startup experience

- Love digging into the details

- Break fuzzy problems into incremental, shippable chunks

- Ship fast and own outcomes end-to-end

- Can effectively steer and leverage AI IDEs

Why Cora:

- Work on cutting-edge applied AI: voice agents, knowledge graphs, multi-agent systems, simulations, and more

- Real users, real impact, high autonomy

- Fast, fair interview loop — no BS

Learn more: https://www.cora.ai/careers#Our-roles

Interested? Email careers [at] cora.ai — these go straight to me, and I read every one.

Stardrift (https://stardrift.ai) | Founding Engineer | Onsite - SF | Full time

Hi HN - I'm the founder of Stardrift, and we're looking for a founding engineer to join our team of 3-4. (Fun fact: I got my first coding job through 'Who is hiring?', almost 12 years ago!)

We are building a world-class travel search experience. In the future, you won’t book travel by opening ten tabs in Google Flights; you’ll book through a personalized AI assistant that understands everything about you and automatically arranges your trip for you.

You'll tackle everything from optimizing LLM performance and building evals to integrating APIs like Amadeus and Duffel. We care about moving fast and writing high-quality code; your job will be to take customer feedback and improve our product, working shoulder-to-shoulder with me & the rest of the founding team.

More info at https://www.ycombinator.com/companies/stardrift/jobs/nC7cjhB....

Please reach out to leila@stardrift.ai to apply.

Aqora | Quantum Computing Expert | Full-time | Paris (HQ) or Remote (Europe)

We're building the go-to hub for quantum computing, focused on organizing quantum hackathons and competitions globally as well as hosting quantum datasets and algorithms.

We've partnered with major industry players, generating six-figure revenues, and have more exciting projects lined up. Our MVP is live, and we're looking for a Quantum Computing Expert to help us scale.

In this role, you’ll: - Refine quantum use cases and define metrics to evaluate submissions.

- Build partnerships and onboard quantum professionals.

- Contribute to product-market fit and platform growth.

- Assist with hackathons and write technical articles on challenges.

Requirements:

- Experience in quantum algorithm development (digital & analog).

- Experience mentoring at hackathons.

- Proactive and detail-oriented.

Bonus: PhD in quantum physics. Perks: Competitive salary, equity options, workspace at Station F (Paris).

Apply by sending your resume, intro, and portfolio to https://quantum.jobs/jobs/85500519-quantum-computing-expert.

Help shape the future of quantum computing at Aqora!

Intact Solutions | Full-Time | REMOTE (US) | https://www.intact-solutions.com

Intact Solutions applies state of the art research to simulation for engineering, design, and manufacturing applications. We’re developing next-generation simulation software to transform engineering workflows.

We're looking for new software engineers that can work to transform research into production ready software! If you have an interest or past experience with

* mechanical engineering / finite element analysis

* computational physics and / or mathematics

* computational geometry, HPC, numerical issues

then please consider reaching out! We are always looking for candidates who are excited about pushing the state of art in modeling and simulation.

If you're interested in learning more, check out the role: https://intact-solutions.com/software-engineer/

or send your resume to

info@intact-solutions.com

Swiss AI Initiative | https://www.swiss-ai.org/ | Hybrid/ONSITE (in Europe)

We are a young team, and the creators of the Apertus LLM, the currently leading open-data open-weights AI model.

Join us to work on cutting edge LLM training in the open. We do pretraining, alignment, reasoning, multilinguality and multimodality - all at the intersection of engineering and research.

This is a joint team between ETH Zurich and EPFL in Lausanne, running on the Alps supercomputer (one of the largest public institution GPU cluster). Visa sponsoring possible, work language is English.

https://careers.epfl.ch/job/Lausanne-AI-Research-Engineers-S...

Nova Credit | Remote (US, Canada)

We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data into actionable risk insights. We are YC company backed by investors from Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures

-> Hiring software engineers from Mid-Level to Staff

-> Tech stack: Node.js, React, TypeScript, Python, PostgreSQL, AWS

You'll work on enterprise-grade APIs, data integrations, advanced analytics, and seamless user experiences. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact on financial inclusion.

Apply at https://jobs.lever.co/neednova/ and mention HN.

Coinomi | Infrastructure / DevOps Engineer | REMOTE (EU timezones)

We are the oldest multi-currency wallet, giving users full control of their private keys and access to hundreds assets. We are looking to modernise and scale our infrastructure.

Job Requirements: - Provision and manage bare metal servers - Migrate existing infrastructure to improved setup - Build monitoring systems for server infrastructure - Implement backup and recovery procedures - Create automation scripts for server and node management - Upgrade legacy Docker containers and optimise resource usage

Required Skills: - Extensive bare metal server management experience - Deep Linux/Unix systems administration - Strong scripting abilities (Bash, Python) - Proficient in Ansible for configuration management - Knowledge of distributed systems and high availability design - Docker experience with legacy system upgrades - Security-focused server management approach - Experience with data backup and recovery procedures

Preferred Experience: - Server monitoring tools (Prometheus, Grafana) - Infrastructure best security practices - Legacy infrastructure migration experience - Kubernetes knowledge

Contact future[at]coinomi[dot]com with a subject prefix [HN-INFRA]

Nango | Staff backend engineer | Remote | Full time | $120-200k + equity

Nango (YC W23) is an open source product: Developer infrastructure for product integrations. We power the integrations of Semgrep, Motion, Vapi, Exa, and hundreds of other B2B software.

Small but highly experienced team, hard technical challenges (scale + infra devtool running untrusted user code), tons of ownership, direct customer contact, growing very fast.

We are looking for a Staff engineer that can touch every part of stack and is passionate about dev infrastructure.

Website: https://nango.dev Jobs: https://nango.dev/careers

Doist | Backend Engineer, Apple Engineer | REMOTE | Full-time | https://doist.com/careers

We create simple yet powerful productivity tools like Todoist, used by millions worldwide.

Backend Engineer: Work on the backend that powers Todoist at scale (millions of users, billions of tasks). Current challenges: re-sharding, a new sync engine, and making our systems ready for the next decade. Our stack: Python, SQLAlchemy, MySQL, Redis, AWS, and an in-house Flask-like framework. We’re looking for strong Python skills, experience with at least one other language, and curiosity about using AI competently to improve both developer workflows and product features.

Apple Engineer: Opening this week. Please check our careers page.

Fully remote across 30+ countries. 40 days PTO, coworking budget, hardware budget, AI tools, work & wellness budget, parental leave.

Metaculus | https://www.metaculus.com/ | Remote: GMT-8 to GMT+3 | Full Time | Remote

Role: Full-Stack Engineer (https://apply.workable.com/metaculus/j/945ED2A234/)

Metaculus is an online forecasting platform and aggregation engine working to improve human reasoning and coordination on topics of global importance. We offer trustworthy forecasting and modeling infrastructure for forecasters, decision makers, and the public. Our mission is to to build epistemic infrastructure that enables the global community to model, understand, predict, and navigate the world’s most important and complex challenges.

Hi HN! CrossnoKaye is a Series C startup tackling climate change by transforming the heavy industrial sector. Our platform uses real-time optimization, advanced modeling, and modern cloud infrastructure to deliver 40% average energy savings and megaton-scale emissions cuts across industrial facilities. https://crossnokaye.com/

We’re hiring for 3 roles and looking for builders who want their work to have real-world climate impact:

1. Sr. Software Engineer- Control Systems |REMOTE (US)| This role would have the opportunity to support our control systems infrastructure initiative, which involves real-time control strategies, secure cloud communication, and large-scale system performance, all built in Go with AWS and Kubernetes. Deep Golang experience is a must-have.

2. Sr. Software Engineer – CS/Infra | REMOTE (US) | In this role, you’d partner with other SWEs to architect and build a scalable platform to allow internal and remote configuration and management of our growing list of IIOT devices. Must be proficient in several programming languages, including scripting and compiled languages + experience with IIOT architectures.

3. Sr. Software Engineer – App Team | REMOTE (US) | In this role, you'd be partnering directly with physicists and data scientists on our Applied Science team to productionize cutting-edge research in physics simulation and optimization algorithms. Must have strong proficiency in Python and its data science ecosystem (e.g., numpy, pandas).*

Interested? Email our team: careers@crossnokaye.com Please include a resume and the title of the role you're interested in within the subject line.

Thank you & I look forward to hearing from you!

Aha! (https://www.aha.io) | Rails / React / Devops | REMOTE

Aha! is the #1 tool for product managers to plan strategy and roadmaps. We serve more than 700,000 users worldwide. We are looking for:

* Experienced full-stack Rails and security engineers to work on the Aha! product. Our application is built in Ruby on Rails, with React on the frontend for rich client-side experiences.

* Devops engineers with Ruby experience. We focus on the "dev" and all of our operations driven by code.

Aha! is profitable, you can work from anywhere in North or South America, and we offer excellent benefits. We use our own product to manage our work (which is especially rewarding) and we deploy continuously.

Our entire team has always been 100% remote - in North American timezones so we can collaborate during the work day.

Pomelo Care | San Francisco, NYC, Remote - USA ONLY with Work Authorization | Software Engineer (mid career - Staff)

Pomelo Care is a multi-disciplinary team of clinicians, engineers and problem solvers who are passionate about improving care for moms and babies. We are Series B, with some notable investors like First Round and a16z. As an early member of our engineering team, you will have the opportunity to shape the product, codebase, and culture at Pomelo for years to come. On any given day, you may:

- Write clean, elegant code to build new features and keep our platform humming

- Design new systems to enable Pomelo's clinical team to deliver personalized care to an expanding patient population

- Build a great mobile experience so pregnant women and new parents feel they have a support team in their pocket

Tools we use:

- GCP, Kotlin, Typescript, React, React Native, Terraform, Spanner DB, Big Query, DuckDB, Dagster, DBT, K8s

Personally, I've never had so much fun and learned so much at work. This team is phenomenal, so I recommend applying if you're looking to learn a lot and make a big impact in an important space.

Learn more here: https://www.pomelocare.com/careers

GHCO - https://www.ghco.co.uk/ | Software Engineer, Senior Software Engineer, Trade Application Support | London | Hybrid | Full Time GHCO is an ETF market maker, quoting across European exchanges. We're a small team of expert traders and proven software engineers, looking for experienced technologists who have an interest in advancing the state of the art in automated market making. Tech stack we're hiring for: Java, Python, SQL, AWS

* Benefits and perks: competitive salary, health insurance, generous hardware and software allowance, casual work environment, inclusive team-oriented culture, rapid career growth opportunities, high impact work.

email: anthony dot sheldon at ghco dot co dot uk, with Hacker News in the title

Brynson | Full Stack Developer | NYC Onsite (3-4 days in-office / week) | $120 - $160K brynson.com

Brynson is a fast-growing SaaS company building Brynsights™, the leading business intelligence platform for the multifamily real estate industry. We help property management companies, owners, and operators unlock actionable insights by connecting data across property management systems, CRMs, marketing channels, and more.

We’re a bootstrapped startup with real momentum — and we’re looking for a Full Stack Developer with 2-4 years of experience who can grow into a technical lead role, working closely with our CTO to expand the platform, build scalable systems, and help guide product development. Our stack is Ruby on Rails with React front end.

To apply, please email a resume and brief cover letter to careers@brynson.com

Thalo Labs | Director of Software Engineering & Machine Learning | On-site (NYC) | $190-240k USD + equity

AI-powered IoT platform turning HVAC systems into self-monitoring assets. Hardware + ML models preventing emergency repairs and wasted energy. Tackling the largest emissions source globally: the built environment.

Team from Waymo, Google, NASA, Cruise, Sidewalk Labs, Boom Supersonic.

Looking for someone who operates at both leadership and hands-on levels: drive software roadmap, integrate ML models, mentor team, partner with CEO on product vision. Ideal for startup engineering leaders who still love to code.

https://jobs.lever.co/thalolabs/4665597c-7afa-403d-8b16-f149... https://thalolabs.com

Narrative I/O | Senior Backend & Frontend Engineer positions | New York, NY | Full-time | REMOTE (4-hour overlap with EST for backend, US & Canada for frontend) | $120k to $200k USD | https://narrative.io/

Narrative has been building a data collaboration platform designed for simplicity and ease of use since being founded in 2016.

Our primary strength is functioning as a data marketplace where we differentiate ourselves by automatically standardizing data, making platform data accessible through the Narrative Query Language (NQL), giving data providers the ability to define row-level access and pricing policies, and making it easy to deliver data to a variety of destinations using our "Connector Framework".

We operate two flavours of our platform: An AWS-based implementation that runs on our infrastructure, and a Snowflake-based version running inside the user's Snowflake account.

We are a small, remote-first team looking for great developers who want to jump in and take major systems and user-facing features from design to launch. While the company's headquarters are in NYC, the development team currently includes engineers working from the US (California and New York), Canada (Alberta, British Columbia, and Québec), Poland, and Serbia.

In brief, the technologies we use are:

- Backend: Scala, Spark, Apache Iceberg, Apache Calcite, Cats, Cats-Effect, Http4s, FS2, Doobie, Deequ, Axolotl, BentoML, and HuggingFace Transformers.

- Frontend: Typescript, VueJS, Nuxt, Vite, and Cloudflare Pages.

- Operations: AWS (ECR, ECS, EMR, RDS, S3, etc.), Datadog, Docker, Terraform, with some burgeoning use of EKS/Kubernetes.

Job postings and more on information about our team and culture are available at: https://jobs.narrative.io/

Apply by sending your resume to hiring-dev@narrative.io.

Doc Labs | Founding Full-Stack Engineer | San Francisco | REMOTE (US), San Francisco | Full-time | No Visa sponsorship

Enterprises are drowning in unstructured documents and outdated workflows; we see a massive opportunity to build the next big enterprise automation platform to transform how work gets done, starting with commercial construction.

Join now and be at the ground floor of a pre-seed startup with strong momentum already in place: signed design partners, a clear product north star, and product development underway. You’ll be building alongside a team of ex-Salesforce leaders/operators with prior exits and 0→1→Salesforce-scale experience.

What You’ll Do:

- Help architect, build, and ship our core platform.

- Collaborate directly with design partners to validate and iterate quickly.

- Influence product strategy, technical direction and architecture from day one.

Who You Are:

- We’re looking for someone who thrives in ambiguity, moves fast, and thinks boldly.

- You’ve shipped products for 3 years at least and yearn to continue learning everyday growing yourself, the product and the team.

Ideal background includes two or more of the following:

- Data, enterprise SaaS, or startup experience

- Full-stack engineering with equal comfort across both frontend + backend

- AI/ML expertise

Tech Stack:

- SvelteKit, Tailwind, DaisyUI, Postgres, and Supabase

- Fast API, Python, Neo4J, LanceDB, Cloud AI providers

If you’re excited to build, ship, and grow with us, let’s talk. To apply, email me: srini@doclabs.ai

Censys | Product Detection Engineer | Full Time | Remote US

Hey everyone. I'm a Principal Engineer at Censys. We are the source for Internet Intelligence. We conduct a full internet survey every day and turn that into actionable data for folks to identify risk, research emerging internet threats, and make the internet a safer place. If you also get a bunch of data breach mailers in your mail box every year, you're familiar with the impact of security breaches at tech companies. We're trying to put a stop to that by helping companies understand their risk and mitigate it.

HQ is in Ann Arbor, MI, but we're all over the US. We're looking for a Product Detection Engineer. Organizations around the world depend on Censys to help them identify threats in their infrastructure. This person will be involved in helping fingerprint and identify relevant risks using Censys data so that response teams can close vulnerabilities faster. You'll be directly responsible for helping organizations identify issues with their systems quickly and correctly.

Apply using the link below!

https://job-boards.greenhouse.io/censys/jobs/8182209002

Moyai | Amsterdam, The Netherlands | FULL-TIME | ONSITE | Founding AI Engineer | 60k-80k + Equity

About the company:

• Technical founding team with relevant industry experience (part of Nvidia Inception Program)

• Backed by well-known European VCs (SpeedInvest + Galion.exe)

• Building agentic advanced analytics and fine-tuning analytical reasoning models

Ideal candidate:

• Demonstrated shipping ability with past projects & roles

• "Young and hungry” mindset, prioritising ability to learn with agency over experience

• Familiar with fine-tuning algorithms and frameworks, transformers/trl, ART, verl and unsloth

• Bonus points for experience in contributing to open-source projects, startups, AI agents, & similar technologies

Reach out to the founder directly: https://www.linkedin.com/in/rhommes/

Promptwatch | Amsterdam, Netherlands | HYBRID/REMOTE (CET +/- 2h) | Full-time | https://promptwatch.com

====================

We’re helping companies rank and be visible in AI search /ChatGPT, Google AI mode etc. (GEO) and hiring a Senior Full-Stack Developer.

Work: Own app layer, real-time APIs & queues; ship end-to-end.

Stack: TypeScript, React 19/Next.js, Node/Fastify, tRPC, Postgres, GCP Nice to haves: ClickHouse, Elasticsearch.

You: 8–9 YOE, strong TS/React/Node.

Comp: €65k–€110k + equity.

Apply: https://promptwatch.com/careers/full-stack-developer (mention “HN: Full-Stack Developer”).

Parsnip (https://parsnip.ai/) is an app like "Duolingo for cooking", powered by an AI-enabled personalized learning platform that works for many domains beyond cooking. Our mission is to build AI that empowers people to be the best version of themselves.

We're hiring a UX/product designer to work on this AI system, and are looking for someone with strengths in data visualization, interaction design, educational design, and general systems thinking to own a good chunk of the direction of this AI-native product.

Here's a bit more about both the consumer app and the AI system, and how to get in touch: https://parsnips.notion.site/product-designer

REMOTE-first with a focus around Eastern Time, and a team between Central European Time to ET. We also have a physical office in NYC.

OwnerRez | Software Tester/QA | Full Time | Remote

OwnerRez is a vacation rental software platform for hosts that automates the entire process from properties, bookings, and the overall guest experience across channels like Airbnb, Vrbo, and Booking.com, as well as direct booking websites.

We're looking for a Software Tester with 5+ years of experience working with software engineers to test new features, look for regressions, document bugs, and identify inconsistencies. Experience with automated testing is a plus, but we mainly do manual testing.

Full Details and Requirements: https://www.ownerrez.com/tester

Cleverbase | Lead Mobile Developer | Remote (Europe), The Hague, Netherlands) | Full-time | €78k - €96k | https://vidua.nl/en/business/careers/mobile-lead-ios/

At Cleverbase, we’re building a safer digital society with our Wallet and Trust Services. We’re hiring a lead to create the most secure and user‑friendly digital identity wallet. You’ll turn business goals into wallet architecture for iOS and Android, stay hands‑on and guide the team shaping Europe’s most trusted identity solution.

Interested? Reach out: recruitment@cleverbase.com

Ideogram | ONSITE(NYC or Toronto)| Full-time | ML, Backend, Marketing roles For more details, take a look here: https://www.ideogram.ai/careers?utm_source=hacker-news

Ideogram is on a mission to make professional-quality design accessible to everyone. We’re building an AI-native application that helps creative individuals and teams produce high-quality content faster and at a lower cost. We are pushing the boundaries of what’s possible with AI, with a focus on creativity and a high standard for trust and safety. Our headquarters is in downtown Toronto, and we have a growing presence in NYC. Read our 3.0, Canvas and Character blog posts, and try our product at ideogram.ai to get a glimpse of what we're building.

Our founding team consists of world-renowned AI experts including Mohammad Norouzi, William Chan, and Chitwan Saharia. This team has previously led transformative AI projects at Google Brain, CMU, and the University of Toronto. Our fundamental work in generative media includes Imagen and Imagen Video: Google’s text-to-image and text-to-video systems.

Duranta | https://www.getduranta.com/ | Seattle, WA | ONSITE | Full-time

Roles: Computer Vision Engineer

We are building software to help lawn care professionals & landscapers design, sell and maintain beautiful spaces. Millions of acres a year are converted into urban dwelling spaces, and we want to help make them as beautiful and as ecologically friendly as possible.

Duranta was founded a little more than a year ago. We are well funded and are expanding our team. Join us, as our second CV/ML engineer and help lead Duranta's computer vision efforts. You'll work on foundational models for aerial imagery understanding, using one of the largest aerial datasets ever assembled, and: Collaborate with the founders and a world-class CV/ML advisor to push the limits of aerial image understanding Architect scalable training & inference pipelines Build and refine models for fine-grained semantic and instance segmentation Drive experimentation and infrastructure for rapid iteration Help define our CV roadmap—from model architecture to dataset strategy to active learning

Stack: Python, PyTorch, Mask2Former, SwinV2, AWS, W&B

If you're interested in working with us, please apply online. Mention you're from HN and let us know why Duranta is of interest and what you've been working on lately.

Please apply on: https://jobs.lever.co/getduranta

Fold | Remote (US Only) | Senior Frontend Engineer, Senior Design Engineer, Lead QA Engineer | Full-time Fold makes Bitcoin easy through great UX and rewards. We’re building the future of Bitcoin payments and need senior engineers to help us scale.

Senior Frontend React Native Engineer – Work on our React Native apps, ship features and own architecture. • 5+ years exp, React Native, TypeScript, Expo • Bonus: Fold user, passion for Bitcoin

Lead QA Engineer – Own automation, quality strategy, and mobile release confidence. • 5+ years in QA, 2+ leading QA or owning strategy • Experience with iOs/Android automation, Maestro/Detox/Appium

Perks: competitive salary + equity, 401k match, unlimited PTO, full benefits, yearly vacation stipend, no Monday meetings, Bitcoin starter pack.

Email tiffany.sawhney (a) foldapp.com or apply here: https://ats.rippling.com/fold-inc/jobs More: https://foldapp.com

Microsoft Research | AI researchers / engineers | ONSITE (UK/GERMANY) | Full-Time

We are a team of researchers at the crossroads between biophysics and machine learning. Our work hit the cover of Science magazine a few weeks ago (https://www.science.org/toc/science/389/6761).

We have several FTE senior research/engineering openings. Annual salary ~100k GBP/y + 30% optional bonus + MSFT stock

https://jobs.careers.microsoft.com/global/en/job/1885786/Sen...

https://jobs.careers.microsoft.com/global/en/job/1885738/Sen...

https://jobs.careers.microsoft.com/global/en/job/1885746/Sen...

https://jobs.careers.microsoft.com/global/en/job/1885775/Pri...

We also have internships + a fixed-time postdoc position available:

https://jobs.careers.microsoft.com/global/en/job/1880857/Res...

https://jobs.careers.microsoft.com/global/en/job/1880858/Res...)

SigNoz | US Remote | Forward Deployed Engineer, DevRel and Growth Marketing | Full-Time | $120K-$200K

SigNoz is an open source observability platform based natively on OpenTelemetry. We developers monitor their applications & infrastructure, and troubleshoot problems quickly. https://github.com/SigNoz/signoz

We have crossed 23000+ Github stars, 6000+ members in the slack community and 150+ contributors.

We are expanding our US team & hiring for the following roles:

Forward Deployed Engineer - https://jobs.ashbyhq.com/SigNoz/8f0a2404-ae99-4e27-9127-3bd6...

DevRel Engineer - https://jobs.ashbyhq.com/SigNoz/8447522c-1163-48d0-8f55-fac2...

Growth Marketing - https://jobs.ashbyhq.com/SigNoz/a3644d27-3dfc-44cb-962d-5f27...

if interested, reach out directly to us at hiring@signoz.io. Mention that you saw this post in HN

Imbue | Sr. Product Engineer | San Francisco (ONSITE) | Full-time

Company: Imbue builds AI systems that reason and code, enabling AI agents to accomplish larger goals and safely work in the real world. We train our own foundation models optimized for reasoning and prototype agents on top of these models. By using these agents extensively, we gain insights into improving both the capabilities of the underlying models and the interaction design for agents. We recently launched our first product, Sculptor: https://imbue.com/sculptor/

We aim to rekindle the dream of the personal computer, where computers become truly intelligent tools that empower us, giving us freedom, dignity, and agency to pursue the things we love.

For more example projects and benefits, see the full job description: https://imbue.com/careers

Please apply through the website above. All submissions are reviewed by a real person!

VIVA Finance | Atlanta, GA (In Person)| Front-End Developer

VIVA is a Fintech Startup based in Atlanta, GA with the mission to build a more inclusive financial system. VIVA offers unsecured personal loans to customers who have traditionally been excluded and taken advantage of by the legacy financial institutions. The VIVA difference is to underwrite heavily on employment history and set up repayments through voluntary direct deposit payments from the borrower's paycheck. Our interest rates are less than 1/3 of the rates our customers are able to get from other financing options.

We are a VC backed company and have been in business for 6 years. We have been profitable for the past year are a half. We are hiring an additional frontend engineer to support our increasing customer volume, as well as to support new products we plan to launch to diversify our revenue stream. You will join our engineering team of 10 and work in a dynamic environment where you are frequently writing net new code to support business objectives.

Our tech stack for the front-end is fully hosted on AWS. The web app is in React and we are building a mobile app with React Native, but experience with this specific stack is not necessary for talented candidates. Our preference is candidates who can come in office 4 days a week to our office on the Atlanta Beltline (next to Krog Street Market). VIVA does not provide visa sponsorship, so please have authorization to work in the USA.

Send an introduction to our hiring manger (alexa@viva-finance.com) with a resume and we will be in touch!

9 Mothers Defense | Robotics Eng. & Computer Vision / Data Scientist | Hybrid (Austin TX) | Full-time

Building AI-driven turrets that stop hostile drones. We need sharp, hands-on engineers:

Embedded Robotics: Python on Jetson, CAN (+ EtherCAN / EtherCAT) drive buses, high-speed cameras, real-time PID/servo control, ROS, TensorRT

Computer Vision / ML: detection + tracking, transformer-based visual models, TensorRT tuning on Jetson

US persons only (e.g. green-card, citizens). Shoot your résumé / GitHub and a quick note on why you're good fit to jobs@9mothers.com

Clerq | Staff Software Engineer, ML Engineer | onsite 3 days (NYC) | https://clerq.io Clerq is a New York City based fintech startup building a next generation platform payments platform that delivers a seamless checkout experience for high-ticket transactions. By leveraging modern bank rails, the platform offers the conversion and UX benefits of cards with risk and money movement infrastructure purpose-built for large purchases. Clerq replaces outdated manual payment methods like cash, checks and wires and expensive card surcharges with a smooth, integrated solution that helps merchants convert more customers without sacrificing margins.

We have started with the $1T+ U.S. auto vertical, where our platform is growing rapidly and already powering payments for several of the most recognized brands in the industry including multiple Fortune 500 companies. With proven traction, the company has expanded into high-growth adjacencies including high-ticket e-commerce, private travel and powersports.

We currently have two open roles in Engineering and are looking for engineers excited to help bring high ticket payments into the 21st century:

- Staff Software Engineer to help build out + scale core payment automation stack

- ML Engineer / Data engineer to focus on payment risk modeling.

Stack: Python/Django, Remix React, AWS Comp: $180-220k + Equity

Email me at nick@clerq.io if you are interested in hearing more!

Oso | Multiple Roles | New York, NY | ONSITE | Competitive Salary + Equity

Oso is a developer-first authorization system that makes access control simple and scalable. Backed by Sequoia and Felicis with $26M raised, we're trusted by thousands of companies from startups to the Fortune 500. Join us at the inflection point as we lead the creation of a $25B+ market.

We're hiring for:

- Engineering Manager

- Development Experience Engineer

Check out our openings here: https://www.osohq.com/company/jobs

Interested? Reach out to julia@osohq.com.

BetterBrain | Software Engineer | Remote (USA)

About BetterBrain BetterBrain (https://www.betterbrain.com) is at the forefront of dementia prevention. We offer the most comprehensive platform to help our members prevent neurodegenerative diseases and optimize their cognition. Role Overview We're rapidly growing and are seeking a talented Software Engineer to join our team and help shape the future of preventative neurology. As a full-stack engineer with experience in high-growth startups and building AI products, you’ll play a key role in our development.

Key Responsibilities Develop and maintain web applications using our tech stack: NextJS, React, Typescript, and Supabase. Collaborate with cross-functional teams to design, develop, and implement new features.

Requirements 4-5+ years of full-stack development experience. Proven experience in high-growth startups. Strong background in building AI products. Proficiency in NextJS, React, Typescript, and Python. Excellent problem-solving skills and attention to detail.

How to Apply Email us at adi@betterbrain.com with the subject line "HN Hiring". Please include: - A copy of your resume. - A brief description of why you think you’re a good fit for this role (for example - a project you owned) Join us at BetterBrain and help us build a healthier future.

Moov | Multiple Roles | Remote (US Only)

Moov powers infinite payment use cases with full data transparency. However you decide to orchestrate the motion of money: pay by bank, pay by card, disburse to a Moov wallet or linked bank account with same-day ACH or RTP®, or spend with an issued card—we’ve got you covered.

"Moov has become an integral part of our strategy at Jack Henry. Their platform’s developer-first approach allows us to innovate quickly and stay ahead of industry demands. Moov’s world-class engineering and design team has deep experience navigating complex payment infrastructure, which helps us win because we’re able to focus on building exceptional customer experiences." – Ben Metz, CTO, Jack Henry

Our technology stack includes: Go, PostgreSQL, AlloyDB, Spanner, Kubernetes, Docker, GCP, OpenTelemetry, Kafka, and more.

Open Roles:

- Senior Software Engineer ($165k–$185k)

- Senior Software Engineer – Front End ($145k–$160k)

- Director of Risk Operations ($175k–$190k)

- Account Manager (Base $120k–$140k, Commission $60k, OTE $180k–$200k)

- Enterprise Account Executive (Base $155k–$175k, Commission $150k, OTE $305k–$325k)

Don't see your preferred role? Email careers@moov.io with your resume.

Apply: https://moov.io/careers/#open-roles

Website: https://moov.io/

VALEO IT Services International | Senior DevOps Engineer | Remote (Romania) | Full-time or Contract

We're looking for a senior DevOps engineer to join our infrastructure team. You will work on developing a Kubernetes-native PaaS with complete developer tooling. Our stack includes Terraform, Terragrunt, Python, Ansible and AWS.

Apply here: https://valeo-it.com/en/career/ and mention HN and dlazarov in the e-mail.

Looking forward to your application!

Spacelift | Remote (Europe) | Full-time | Senior Software Engineer | $80k-$110k+ (can go higher)

We're a VC-funded startup (just recently raised $51M Series C) building an infrastructure orchestrator and collaborative management platform for Infrastructure-as-Code – from OpenTofu, Terraform, Terragrunt, CloudFormation, Pulumi, Kubernetes, to Ansible.

We're now hiring for our new product, Spacelift Flows, built for more general DevOps (and related) automation - incident automation and response, self-service, slackbots, AI automations, building MCP servers, etc. We like to call it an "Integrated Automation Environment".

You can see a demo video of it here[0] with more videos available in the job post. Tech stack is Go + Postgres backend, along with TypeScript + React frontend.

Overall we have a deeply technical product, trying to build something customers love to use. We promise interesting work, the ability to open source parts of the project which don't give us a business advantage, as well as healthy working hours. With the product being in it's early days, it's also a great opportunity to have a large impact!

If that sounds like fun to you, please apply at https://careers.spacelift.io/jobs/6438380-product-software-e...

[0]: https://youtu.be/vZHGg1QIAQk

Falconer | Lead AI engineer | Bay area, hybrid/onsite | $200-300k + equity

Falconer is building AI-powered knowledge tools for engineers. Knowledge management is a $30b industry, and we intend to build the tools that leverage AI to power the next generation of engineering knowledge. Our vision is to empower every engineer to write as well as the best technical writers, and enable every organization to have internal docs as great as the best external docs are.

We're currently a team of 8 from Stripe and Meta, currently turning our prototype into a generally available product.

Looking for an engineer experienced in evals, inference latency optimization, prompt caching, and LLM agent reliability. Or someone who just loves tinkering with the latest models and newly-published techniques, and wants to work somewhere you try them out in a real product that people use!

Apply at https://falconer.com/jobs, or drop your resume and a sentence or two about what AI knowledge workflows you would be excited to work on to jobs@falconer.ai

Atomic Fi | https://atomic.financial | Strong Junior to Mid Level Engineer | Automation, Integration Engineering | Full-Time | REMOTE (US)

Atomic builds tools that help users do common financial tasks like changing their direct deposit when they open a new bank account, changing their payment on file when they open a new credit card, or tracking and automatically cancelling their subscriptions.

Our Automation Engineers build integrations using tools like Puppeteer or by consuming third party APIs to automate those tasks. Knowledge of web fundamentals is a must, but we often find SDET experience translates well so this can be a great opportunity for someone looking to change lanes in the software field.

If interested, apply here: https://jobs.ashbyhq.com/atomic-financial/7e781781-c559-4dde...

If you have questions or would like to connect about other jobs, feel free to contact me at jack [at] atomicfi.com

QuestDB | C++/Rust Database Engineer | REMOTE| | Full-time | https://www.questdb.com

Work with world-class engineers - including two teammates who placed in the top 10 of the One Billion Row Challenge (1BRC).

As a specialized database, QuestDB stores, processes and analyzes time series data in real-time, with a focus on reliability, extreme performance and simplicity. It provides best-in-class hardware efficiency and robust features, saving costs and accelerating time-to-value.

Our open source repository has gathered 16k stars and QuestDB is one of the fastest growing database in the category. We are a product-first company with a large community of developers. As a team, we are globally distributed, remote-first and backed by leading venture capital firms and Y Combinator.

Teams have had success with QuestDB across a wide range of industries, such as Financial Services, Energy and Space Exploration. Category leading companies such as OKX, Mizuho, and Airbus rely on QuestDB for large-scale, data-intensive production systems. Emerging and disruptive startups also leverage QuestDB to gain a significant edge within traditional industries.

To apply: https://questdb.com/careers/core-database-engineer/

Vantage | Senior/Staff Software Engineers | NYC and Remote | Full Time

Vantage is a FinOps / Cloud Cost Management platform that helps 15,000+ organizations globally like Block, Rippling, FanDuel, CircleCI, etc manage their infrastructure costs. We are a ruby/rails shop and if you love infrastructure, it's a very interesting role as our customers are others like you looking to manage their infra spend.

We also have a very significant set of work in progress for AI/Agent workflows - basically an agent that can auto-remediate cost related issues on behalf of our customers. We're a well funded Series A company and backed by a16z and Scale venture partners. The company is between 50-75 people today and scaling up quickly.

We're headquartered in NYC but US-remote friendly (sorry, we can't handle international at this time).

Website: https://vantage.sh/ Learn More: https://www.vantage.sh/careers

Lyst | Engineering Lead, ML Engineer, Data Scientist, Full Stack Engineer, Product Analyst | London, UK (Hybrid) | Full-time

Lyst is a global fashion shopping platform founded in London in 2010 and catering to over 160M shoppers per year. In 2025, Lyst joined Zozo, operators of Zozotown, the leading fashion e-commerce platform in Japan.

- Engineering Lead - https://apply.workable.com/lyst/j/7009C765BC/

- Product Manager - Shopping Experience - https://apply.workable.com/lyst/j/D2405803DA/

- Senior Data Scientist - https://apply.workable.com/lyst/j/3D079ADAFA/

- Senior Full Stack Engineer - https://apply.workable.com/lyst/j/73ED30CCAC/

- Senior Machine Learning Engineer - https://apply.workable.com/lyst/j/024CD64264/

- Senior Product Analyst - https://apply.workable.com/lyst/j/610E9CDA0E/

ReciPal (https://www.recipal.com) | Founding Rails/Full Stack Software Engineer | REMOTE | Full-Time

We aren't actually hiring anyone immediately, but we've hired a handful of great engineers from HN and inevitably will need to hire again. We've found having those conversations and keeping in touch is much better than going through the process from scratch each time, as it fast tracks the process a great deal when the time comes. So reach out if you think you're a good fit.

ReciPal is a profitable, growing, bootstrapped, and (have always been a) fully remote company (based in New York) with 6 full-time employees. We make simple software for food businesses - nutrition analysis and labeling, costing, and inventory management. We've been around for almost 15 years now!

You'd be working directly with me, solo founder, our senior engineers, and marketing and support colleagues, and hopefully take on a growing role over time to treat the business like your own. It's a very low key work environment, but independent and plenty of responsibility and ownership for the right person.

Stack includes Rails 8, JavaScript, Postgres, Heroku.

Full job description: https://docs.google.com/document/d/1At0_nQH5Vqvn3AQRjPLLUMi2...

Unto Labs | San Francisco, CA | ONSITE (Hybrid OK), REMOTE (US) | Full-Time Unto Labs is developing the Thru Layer-1 blockchain (https://thru.org)

We recently announced $14.4 million in funding to make blockchains & digital assets useful for the world. Founded by Jump Crypto alumni and core contributors to the Solana protocol and the Firedancer client (https://github.com/firedancer-io/firedancer), we’re tackling fundamental scalability, performance, and usability challenges in distributed ledgers.

Our runtime conforms to the RISC-V specification—moving away from domain-specific VMs, DSLs, and bespoke compiler toolchains that limit developer and institutional adoption. You can write smart contracts and programs in any LLVM compatible programming language and reason about a standard ISA in RISC-V. Components are developed in C for maximal control over performance and resource usage.

We believe there is a unique window of opportunity to developer fairer, more accessible, and more global financial products on resilient public blockchains.

We are hiring for the following roles:

- Systems Engineer: https://jobs.ashbyhq.com/unto-labs/13df6bea-b253-4c80-ae05-5...

- Software Engineer, Developer Tools: https://jobs.ashbyhq.com/unto-labs/1ae2769b-1a67-41e2-a8d6-5...

Fullstory | Atlanta or Remote (US, London, Colombia) | https://www.fullstory.com/

Fullstory provides privacy-preserving session replay and analytics for websites and mobile apps. Our session replays are nothing short of magical - they look almost like a video of the user's screen (with private details redacted) - and the combination with analytics creates eye-opening insights.

We have several roles open in engineering & product. The backend roles are going to be working with Go (golang), gRPC, Solr, BigQuery/BigTable, Kubernetes (K8S/GKE), and more on Google Cloud Platform (GCP), and then the fullstack roles add in TypeScript & React for the frontend.

USA:

* Staff Product Designer - $152~185k - https://www.fullstory.com/careers/jobs/bbd018bf-cf92-47ea-85...

Colombia:

* Senior Software Engineer, Web Capture: https://www.fullstory.com/careers/jobs/fc8bacd1-7ad3-41df-a9...

* Senior Software Engineer, Data Management: https://www.fullstory.com/careers/jobs/729bbb6e-29ba-451a-9b...

* Senior Software Engineer, Data Ingestion: https://www.fullstory.com/careers/jobs/02430757-91ab-46e0-86...

* Senior Software Engineer, Behavioral Intelligence: https://www.fullstory.com/careers/jobs/847fba62-f7b7-46ae-92...

We also have a few more roles open in the US & UK in sales, finance, and customer support - see https://www.fullstory.com/careers/ for the full list and some general info.

For US roles, in addition to the listed pay ranges, you can expect regular raises & bonuses, equity, and benefits including: health insurance, 401k matching (Vanguard), annual learning stipend, unlimited PTO, and more. I take about 5 weeks vacation a year, in addition to ~3 weeks worth of company holidays (federal holidays + the week of Christmas to New Years.)

You also get a 5-week sabbatical after 5 years of employment - I took mine at the end of last year, and it was fantastic.

To apply, please submit your info on the website, and our recruiting team will get in touch with you. If you have questions, feel free to reply here or contact me directly. (I'm an engineer on the iOS team, but I'll do my best to answer questions.)

Vibrant (https://www.vibrantpractice.com) | Founding Applied AI Engineer | Full-Time | SF Bay Area (hybrid)

We're building Cursor for doctors. At Vibrant, we've picked the expensive, high-touch, data-heavy subspecialties of functional, integrative, and longevity medicine, and we've created AI agents that reduce hours of clinical work to minutes.

We're a world-class team of health tech founders, AI builders, and physicians from Meta, Stride Health, and Parsley Health. In just five months, we've built notetaking/scribing, Clinical Decision Support, and some of the integrations a clinician needs to run their practice with Vibrant as their AI Operating System.

In words of doctors using our product already in production: "I have goosebumps, this is really incredible. Very accurate." "Seeing the patient overview AI-generated summary come to life after placing a couple notes is AMAZING. I'm losing it over here"

Our stack: Typescript, React, NextJS, React Native, Expo, AI SDK, and custom AI agents, RAG, tools, and agentic workflows.

It's still early days for us – we're looking for folks who ship fast and are curious and resourceful. If that's you, shoot me an email at pedro [at] vibrantpractice.com or just book an intro with me: https://book.vimcal.com/p/pedro/hn-15-minute-chat-with-pedro

REMOTE (US-West preferred) OR on-site (DC or London)

We are looking for a passionate and experienced Distributed Systems wizard. If some of the following items excite you, then you’d probably enjoy working with us.

  * Systems Dependability: fault tolerance and high availability
  * Foundational D.S. problems (leader election, fault detection, consensus, atomic broadcast, etc.
  * Testing and benchmarking techniques (chaos Engineering, fault injection, fuzzing, property-based testing, Jepsen, ...)
  * Replication techniques and protocols
  * Debuggers and debugging techniques
  * Distributed Databases & Consistency Models
  * Durable Message Queues & Workflows
  * Formal verification

About the job: you’ll get your hands dirty on a number of distributed systems of various shapes and sizes. Some traveling required (conferences, customers visits, and HQ visits if you are remote).

About us: Well established startup. One-of-a-kind product, used by a growing number of well-known companies. Great team chock full of impressive, passionate, fun people.

Send your CV to flybys.verb.4e@icloud.com

Please include:

  * A brief comment of why you think we're a good match
  * Which of the areas above you are experienced in (prepare to be grilled on them!)
  * The string ‘mantis shrimp’ to make it past our spam filter.

Uncountable | NY, SF, London & Munich (In-Person) | Full-Stack Engineering

https://www.uncountable.com/hiring/hn

Uncountable accelerates R&D for industrial scientists across leading materials, chemicals, and life sciences organizations. With our SaaS solution, our customers get better products to the market in half the time. Uncountable was founded by MIT and Stanford engineers and has been profitable since 2016. Our team has grown from 50 to 100 over the last two years.

Full-Stack Engineers | $120k - $220k + Equity

---> Uncountable is looking for engineers who can spearhead the development of the Uncountable Web Platform. The position is heavily product-driven and comes with challenges across the stack.

--> Summer internships and working student positions are also available.

Learn more: https://www.uncountable.com/hiring/hn

Uncountable is hiring in New York City, San Francisco, London, and Munich.

Contact our CTO directly at jason@uncountable.com

Fairwater Labs | Founding Engineer for dual-use startup focused on multi-modal data processing at the edge | Remote (US-based) | Full-Time | Competitive salary and significant equity | US authorized only

We are building a cutting-edge product leveraging generative AI and machine learning for multi-modal data processing at the edge.

Why join now? Backing from a dual‑use venture studio. Validated user stories, early wireframes, and early potential users are ready--your code ships to real operators fast. Co-Founder has extensive product background and experience driving go-to-market.

What you’ll do: Own the end-to-end architecture & tech / product roadmap – choose the stack, design data pipelines, secure cloud infra, and front-end. Develop and deploy AI/ML models for edge devices. Implement computer vision. OCR. Create video summarization pipelines to extract key events using transformer-based models or temporal analysis. Multi-modal systems. Edge-to-Cloud

You are:

Full-Stack. Edge AI deployment (ie. NVIDIA Jetson or Raspberry Pi.) Strong background in computer vision, OCR, and multi-modal AI, with familiarity in frameworks like OpenCV or Hugging Face Transformers. GovCloud experience.

Entrepreneur at heart—show us something you’ve built that shipped fast. Send a brief intro (or resume if you have it) + GitHub/portfolio to epsilon@fairwaterlabs.com

FunnelStory | Principal Architect (Go / Golang) | REMOTE (India) | Bengaluru | Full-Time | 55-85 LPA | https://funnelstory.ai

I'm Preetam, co-founder and chief architect of FunnelStory. We're looking for exceptional back-end engineers to build and scale our AI SaaS product.

FunnelStory is an AI-first customer superintelligence platform. We're a small (<20 people), fast-growing, VC-backed, early-stage startup, and we're gaining traction with enterprise customers. We're looking for architects/engineers to join our team that's building next-generation AI platforms using Go.

This is a great fit if you have:

* Deep expertise in Go.

* A strong architectural background, with experience designing and scaling complex systems.

* Expertise with relational databases (PostgreSQL) and SQL

* Excitement about taking a high-impact, independent role in an early-stage environment, helping to mentor and uplift the team.

Who we're looking for:

* 8+ years experience in Go, SQL, AWS

* Bias to action, ability to execute independently

* Strong architectural and independent problem-solving skills

* Ability to communicate complex ideas simply

More details + apply: https://wellfound.com/l/2Bn5eQ

Interested? Email me at preetam @ funnelstory.ai with "HN" in the subject.

Hardfin | Full-stack engineer | Denver metro, CO or Bay area, CA (REMOTE or ONSITE) | CA/CO ONLY | Full-time | 150k-180k salary (DOE)

Hardfin is a B2B software platform for equipment manufacturers that enables them to track their assets and manage projects for their hardware. We are looking to add another fullstack engineer that can wear a bit of a product hat and is comfortable with "figuring it out" as they build.

Short and transparent hiring process, 30 min intro call, 30 min tech screen, 30 min vision/product call, 2hr technical test, 45 min culture fit call, offer. No panels, no leet code questions.

Requirements: 5+ YoE, 3+ Go, 1+ Typescript, 6+ months of working with AI assisted IDE/tooling. Requirements are not firm, but you will be asked questions about Go and Typescript and it would be difficult to pass the tech screen without the experience.

IMPORTANT: - You must be located in CA or CO, this isn't negotiable; ideally you are in the Oakland/SF or Denver area. We do not provide relocation. - We do not have the ability to process or handle sponsorships at this time (visa's of any type) - you must be a citizen, permanent resident, or have work authorization that isn't tied to employment (IE refugee status).

See the full job rec/apply at https://wellfound.com/l/2Bs5iM

You can reach me directly at bweisbart -at- hardfin (.) com, please include "HN" in the email subject so I can prioritize a response to you. We respond to all candidates (no voids) as long as you meet the the eligibility requirements.

Datadog | Software Engineers | ONSITE (Boston, Lisbon, Madrid, NYC, Paris, Tel Aviv) | Full-time

Datadog is a monitoring, tracing, logs system, and more, for your infrastructure and services. We build our own tsdb, event store [1][2], distributed tracing tools, cutting edge visualizations, and more. We love shipping great experiences for customers just like us and are growing fast! We write a lot of Go, Java, Python, Typescript (with React), and a bit of other languages. We run on k8s, and are multi-region and multi-cloud.

We're looking for people who can build systems at scale as we process trillions of events per day. Let us know if that's you!

https://dtdg.co/hnwhoshiring

[1] https://www.datadoghq.com/blog/engineering/introducing-husky

[2] https://www.datadoghq.com/blog/engineering/husky-deep-dive

FusionAuth | Senior Security Engineer, Documentation Engineer, Sr Developer Advocate | Varies between REMOTE and ONSITE in Denver, CO, USA, details in job desc | Salaries listed on job req, but for the Security Engineer it is 140k-200k

Our mission is to make authentication and authorization simple and secure for every developer building web and mobile applications. We want devs to stop worrying about auth and focus on building something awesome. There are a lot of companies in the auth space, but we feel like we have something special:

* a unique deployment model (self-host on-prem or in your cloud or run in our cloud)

* A well designed API first approach; one customer compared our app to petrichor

* a mature product (the code base is eight+ years old and we've found and fixed a lot of the sharp edges around core login use cases; there are plenty more features to add)

* founder-led; the CTO is an engineer who still writes code

* a full featured free-as-in-beer version which makes the sales cycle easier; prospects often come in having prototyped an integration already

Our core software is commercial with a "free as in beer" version. We also open source much of our supporting infrastructure. Technologies and standards that you will work with: Modern Java, MySQL, PostgreSQL, Docker, Kubernetes, OAuth, SAML, OIDC.

Learn more, including about benefits and salaries, and apply here: https://fusionauth.io/careers/ ( Click/tap the 'View open positions' orange button. )

CoPlane (https://coplane.com/) | Infra (BYOC) Platform Eng and Product/Design Engineer | Remote (North America) or NYC | Full Time

The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount.

We're looking for exceptional engineers to grow our small founding team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems.

If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.

Roles: Platform Engineer (Infra), and Product/Design Engineer.

For more info and to apply: https://coplane.com/careers

yeet | Chicago, IL / Remote | Full-Time Building a dynamic runtime on top of the Linux BPF sub-system. Looking for extremely talented / passionate Rust developers / Product Managers with a deep interest in Linux internals, Dev Tools, Great Developer Experiences and Systems programming. Experience writing highly-concurrent, performant multi-threaded Rust is a must. Feel free to tell us all about your favorite GNU core utilities / Linux system calls / kernel sub-systems at:

work [at] yeet.cx

You can visit us at https://yeet.cx/

Or try our interactive sandbox at https://yeet.cx/play

For more jobs check out https://yeet.cx/careers

Zeven | Senior Backend Developer | ONSITE in Zurich (Switzerland) | Full-time | Competitive salary + stock options

We're a newly-founded and well-funded startup that is seeking to revolutionize the sports industry with AI-powered solutions. Our mission is to unlock human potential and redefine the sports experience through innovation and technology.

We are looking for an experienced Senior Backend Developer and sports enthusiast to join our on-site team in Zurich, Switzerland. This is a hands-on, high impact role. We use Typescript for web, Python for ML, PostgreSQL, React + TanStack, AWS and SST.

Please see the Full Job Description [https://tinyurl.com/sw-zeven] for requirements and more details about our Tech Stack.

We are offering full-time employment with a competitive package:

• Competitive salary and stock options.

• Pension plan bonus and 25 days of paid vacation plus public holidays.

• Charming office next to the lake of Zurich with fully-equipped kitchen.

• Top-notch equipment (MacBook Pro laptops, standing desks, etc.).

• We love to organize company outings and sport events.

If you're a motivated and experienced backend engineer who is crazy about sports and looking for a new challenge, we'd love to hear from you! Please email CVs to alex@zeven.ai

We do not consider remote candidates, agencies and candidates located outside the EU/UK/EEA/Switzerland

LiquidFi (Miami, FL) | Senior Software Engineer - Solidity + Python | ONSITE | Full-time | https://liquidfi.io

We're reimagining mortgages through blockchain - tokenizing real estate debt to make mortgage investing more transparent, accessible, and liquid. Early-stage, profitable, and moving fast.

THE ROLE: Build smart contracts in Solidity that power mortgage tokenization, develop Python services/APIs connecting blockchain to the real world, and own features end-to-end. You'll wear multiple hats - one minute writing a Solidity payment contract, next debugging a Python API, then optimizing Celery tasks. Small team = big impact.

STACK: - Smart contracts: Solidity, OpenZeppelin, Hardhat/Foundry - Backend: Python (Django, DRF), Celery, RabbitMQ, PostgreSQL - Infrastructure: AWS, Docker, EVM-compatible chains - Integrations: Web3.py

LOOKING FOR: - 10+ years building products with serious Solidity + Python chops - Experience developing EVM-compatible smart contracts - Expert with Django, DRF, Celery - Strong distributed systems & async programming experience - Deep understanding of blockchain fundamentals, DeFi, token standards (ERC-20, ERC-721, ERC-1155) - Bonus: financial services, mortgages, or asset-backed tokens

WHY JOIN: - Own big pieces of the stack from day one - Competitive pay + meaningful equity - Shape the future of real estate finance - Small, passionate team

LOCATION: Miami, FL - onsite required (South Florida candidates welcome)

Apply: talent@liquidfi.io with resume + note about your Solidity/Python experience

Float Technologies | Frontend, Backend, AI Engineers | Full-Time | ONSITE | New York, New York | $120k-225k

https://www.float.tech/careers

At Float, we're building capital markets infrastructure that matters. Our AI-native platform is tackling decades-old inefficiencies, creating technology that enables financial institutions to interact seamlessly and automate intelligently. Based in SoHo, New York and backed by top-tier venture investors, we're a team of engineers, designers, product managers, quants, and market experts shipping elegant solutions to complex problems. We move fast, care deeply about building things right, and work directly with our users to deliver products that transform how markets operate.

If interested, apply here https://float-tech.notion.site/140ab6ef153b800a97e0d68ee5444...

Dialogue AI | Founding Software Engineer | Full-Time | Onsite (Los Angeles, CA)

Dialogue AI is building the future of customer research. Our platform brings together AI agents to help create studies, conduct interviews, and extract meaningful insights -- enabling teams to understand their customers faster and more effectively than traditional methods.

As a founding engineer, you will work across product, infrastructure, and AI to deliver a customer-first product you can be proud of. You will collaborate directly with a founding team from leading tech companies and universities, shaping both the product and the culture as we scale.

- We're looking to hire 2-3 engineers to round out the founding team

- Seed funding secured ~month ago in partnership w/ a top VC

- Compensation: $125-200K USD + equity

If interested, you can email me directly at hubert [@] dialogueai.com or apply here: https://jobs.ashbyhq.com/dialogueai/687b6d39-cf6d-4767-bc83-...

i-Logs | Brussels, Belgium | Full-Time | ONSITE | https://www.i-logs.com

Brussels based company specialized in Custom Web & Android Applications, Security and Compliance, Managed IT Services and Cloud Hosting. We are looking for Commercial Manager M/F.

As a Commercial Manager, you will play a central role in the development of our business. You will work directly with the management committee, actively contribute to defining the commercial strategy, represent the company’s image in the field, and stay continuously trained and informed on cybersecurity issues.

Info & Application: https://www.i-logs.com/job-opportunity-commercial-manager-25...

Feldera (https://feldera.com | REMOTE (US) | Full-Time

RELIABILITY AND PERFORMANCE ENGINEER: https://jobs.ashbyhq.com/feldera/709c14e4-1fa9-46b4-9ff8-078...

  - Strong background in systems engineering, performance testing, or site reliability engineering.
  - Fluency in Python and Linux fundamentals. Rust experience is a plus.
  - Experience with distributed systems and database concepts (consistency, fault tolerance, transactions).
  - Experience with CI/CD/Infrastructure as Code: GitHub Actions, Docker, Kubernetes.
  - Hands-on experience running large-scale and long-running workloads, preferably in a cloud-native environment.
  - Curiosity, rigor, and the ability to design experiments that simulate messy real-world conditions.

  - 5+ years experience in solution architect, customer engineering or solution engineering roles.
  - Strong background in distributed systems, databases, cloud infrastructure, and modern data platforms.
  - Experience with data-intensive systems in production (e.g., Kafka, Delta Lake, Iceberg, Kubernetes, monitoring/observability stacks).
  - Exceptional debugging and problem-solving skills, especially in customer-facing contexts.
  - Excellent communication skills, both for customer-facing and internal interactions.
  - Ability to write and maintain high-quality technical docs and playbooks.

Feel free to email with your resume gz @ domain, put HN in subject.

Avy | Staff Engineer / Startup Polyglot Engineer | San Francisco | Onsite (Hybrid) | Full-Time | https://www.avy.app

We are an early-stage, well-funded startup making humans and computers work together more efficiently. Experienced team from Apple AIML and other great companies.

We're looking for a polyglot "startup engineer" at the Staff+ level can help with the end-to-end implementation of new features and capabilities and who can move between different components, be creative, be flexible, take ownership, and get things done. We have a complex, challenging product, but one that's amazing to work on and that will soon change how people think about working with each other and with AI.

You'll enjoy this role if:

- You like going 0 to 1 with high ownership: moving features and products from idea on a napkin, to prototype, to engineering UI, to shipped and polished product

- You are innovative, get satisfaction out of learning new things, and thrive in an environment of uncertainty and opportunity

To succeed, you should:

- Have the wisdom to know when to take the fast route vs when to step back and clean up your mess

- Be capable and excel on your own, but be humble and communicate well with others as projects require more collaboration

- Be versed across many programming languages (e.g. from C++/Java/Swift to Go to JavaScript or Python)

- Have worked on many types of projects and software -- have you built servers, written games, shipped native apps, and vibe-coded (kidding) web apps? If so, you're a fit.

- Be versatile and work both high level and low level, on old tech and new. Have you both prompt-engineered an LLM AND tweaked the code that decodes tokens in your own local LLM runner? If so, you're a fit.

https://www.avy.app/careers.html?gh_jid=4007253009

Email us at jobs@avy.app

Valantor | US Hybrid / Remote | Full Time | Python Agent Engineer https://www.joinvalantor.com/agent-engineer

As an Agent Engineer at Valantor, you’ll work hand-in-hand with our customers to design and deploy intelligent agents that solve their most pressing document challenges.

This role is deeply collaborative and applied—you’ll be in the room with clients, understanding their workflows, and translating their needs into working AI solutions. It’s an opportunity to combine technical expertise in Python and prompt design with direct customer engagement, bringing the most advanced AI for unstructured documents into live production environments.

About Us

Valantor is a full-stack AI + humans platform purpose-built for the BPO industry. We’re tackling the hardest problems in document processing—insurance claims, contracts, invoices, and other unstructured files—where today armies of humans still do the work.

Our proprietary AI technology has been in development for more than six years, and we were among the first beta users of OpenAI in 2021, giving us a head start in applying frontier AI to real-world enterprise problems.

Our leadership team has built and exited multiple companies in BPO and enterprise software, with a track record of selling billions in solutions globally.

We’ve raised significant capital, completed multiple strategic acquisitions, and are already generating tens of millions in revenue. It’s a unique chance to help shape a company that blends startup energy with enterprise scale, backed by veteran operators with deep vertical expertise.

Stytch | Various roles | San Francisco, CA ONSITE/HYBRID | https://stytch.com

Stytch helps developers protect their applications and make authentication that's simple and scalable, so that teams can stay focused on building differentiated products. That's various forms of signup/login flows, SSO and multi-tenant organization needs, integrated bot detection and fraud prevention, and more.

Beyond core authentication for humans, I'm also excited about our work in auth for AI: making it easy for companies to serve AI agents, and for AI agent developers to securely get things done. Stytch Connected Apps makes it easy to authenticate AI agents, and IsAgent and Device Fingerprinting help companies understand and control their AI traffic.

Personally, I enjoy working on interesting things, with the ability to make customer impact, and with great people. If you do too, consider joining us.

We are hiring for Software Engineer, DevRel/Marketing Engineer, Product Designer, and Solutions Engineer roles.

Apply here: https://jobs.ashbyhq.com/stytch

Hetzner Cloud | Remote (within Germany) or on-site | Full-Time |

Exciting opportunities await! Ready to embark on an exciting journey with us? Dive into a world of possibilities by exploring exciting job opportunities right at your fingertips. Check out the details on our website at: https://www.hetzner-cloud.de/en#jobs

Senior C++ Software Engineer (m/f/x) - Object Storage

We eagerly anticipate receiving your application.

Polar Sky | Founding AI Lead | Bay Area/Seattle | Hybrid/Onsite | Full-time

We're a well-funded, pre-seed cybersecurity startup focused on data security. I'm looking for a founding AI lead with experience in fine-tuning LLMs (expertise around RL + reasoning models a big plus). This person would own the full AI stack from data to training to eval to test-time compute.

Who's a good fit:

* If you've always thought about starting a company, but for whatever reason (funding, life, idea), this is a great opportunity to be part of the founding team. We're 2 people right now.

* You enjoy understanding customer problems and their use cases, and then figuring out the best solution (sometimes technical, sometimes not) to their problems.

* You want to help figure out what a company looks like in this AI era.

* You enjoy teaching and sharing knowledge.

Questions, interest, just email jobs@polarsky.ai.

StrongDM | [Staff, Senior, Junior] AI Agent Engineer | San Francisco Bay Area (Palo Alto) | Full-Time | ONSITE | SW3.0

StrongDM applies deep tech to hard problems for demanding cybersecurity customers. Our embrace of large language models continues that tradition, achieving useful and reliable outputs from ambiguous and non-deterministic inputs.

Join me (Justin, co-founder & CTO) and our AI Agent team to help our global customers secure their most critical systems.

Ideally: if you've already decided you need to be working on the frontier of this technology wave & you're open to doing so in person at a physical whiteboard, e-mail me a few words to that effect (justin@strongdm.com).

Optionally: read more at http://strongdm.com/careers

Finally: on a personal note - a mix of awe, ambition, anxiety, and confusion are inevitable at this moment. Our small team has found a flow, and we're successfully metabolizing the daily changes in the gradient. Come on a run with us; see what we see.

10x Genomics | Software Engineer(Multiple Roles) | Remote(US) or Pleasanton, CA | Full-Time

We make instruments and software that enable scientists to study biology at single-cell resolution. Our technology features in over 7,000 scientific publications (https://www.10xgenomics.com/resources/publications), and is used across the world by top research institutions, hospitals, and pharmaceutical companies to study cancer, immunology, developmental biology, and more.

Our user-facing applications - which include the public website, a web-based analysis platform, visualization apps, instrument UIs, and more - have React/Typescript frontends and Golang backends, with Rust + C++/CUDA for analysis algorithms. Our instrument control software, which automates complicated microfluidics, motion, and imaging subsystems are written in C++, Python and Golang. If you want to use your software skills to push forward the frontiers of biology, please check us out.

Our tech stack includes: C++, CUDA, Rust, Go, Python, Typescript, Bazel, etc

Open Roles:

- Staff Software Engineer

- Software Engineer III - Frontend

- Senior Software Engineer - AI Solutions

- Staff Software Engineer - AI Solutions

I'm a Sr. Staff Software Engineer here. Happy to answer questions you might have, I'm easy to find on LinkedIn if you need to know more.

Apply: https://careers.10xgenomics.com/careers?department=Engineeri... Website: https://www.10xgenomics.com

Baton | Product Designer Manager / Senior Software Engineer - Full Stack, Technical Lead / Senior Software Engineer - Infrastructure, Machine Learning | San Francisco, CA (Hybrid) | Full-Time

Baton (baton.io) is building software to automate the $800B+ freight industry. We're a small, fast-moving team inside Ryder (Fortune 500 logistics company), rethinking how freight moves with real-time visibility, automation, and AI.

- Product Designer Manager: https://job-boards.greenhouse.io/baton/jobs/4796615007

- Senior Software Engineer - Full Stack, Technical Lead: https://job-boards.greenhouse.io/baton/jobs/4623804007

- Senior Software Engineer - Infrastructure, Machine Learning: https://job-boards.greenhouse.io/baton/jobs/4870381007

Ours Privacy (https://oursprivacy.com) | Senior/Principal Software Engineer | Full-stack | Remote (US)

Ours Privacy is building a HIPAA-compliant Customer Data Platform (CDP) and Consent Management Platform (CMP) designed for healthcare organizations. We help hospitals and digital health companies use analytics, consent, and personalization tools without compromising on privacy.

Our stack: Our stack: React, Node.js/TypeScript, and AWS (Lambda, API Gateway, S3, Step Functions, CloudFront, WAF, DynamoDB, Athena/Iceberg).

What we’re looking for: • Startup mindset: bias toward shipping, ownership, and iterating quickly. • Engineers who enjoy working across the stack • Comfort with AWS (serverless preferred) and TypeScript/JavaScript.

Why join us: • Early stage, venture-funded startup — own complete features. • Remote-first (US-based team). • Small, senior team that values technical excellence, transparency, and work-life balance. • Flexible job title

Apply: https://oursprivacy.com/careers/software-engineer

Stealth Vertical AI Startup (a16z Speedrun 006) | Founding AI Engineer | San Francisco | Onsite | $120K + Top Equity

We're building the first AI mover in a massive, real-world industry crucial to keeping the modern world running. $100K ARR in 3 months and pre-seed from a16z speedrun.

Team: Not our first rodeo. Michael Holkesvik (me!) was CTO of series B company that raised $65m. Sanjay Dasari (nice guy!) is a 2× founder and scaled his last startup to $250M revenue. We have the best advisory board in the industry, and know how to have fun while building something massive.

Role: Work directly with us, and own full stack features end-to-end. You should be excited for customer site visits where we get the privilege of sharing our tools with expert blue collar workers. Not "forward deployed", but we need to be belly-to-belly on occasion to learn what's working.

You: Sharp and scrappy, excited about overlooked industries. 2-3 years experience, ideally writing code at an early stage startup. You're excited about cutting edge voice AI (pipecat, vapi), AI agents (Browserbase, Vercel AI SDK), and multimodal reasoning.

Apply: mike [at] heaviai [dot] com with a short note + optional links to projects/code

Artificial Analysis | https://artificialanalysis.ai | Full Stack Engineer, ML Engineer, Member of Technical Staff | Onsite in San Francisco or in Australia/New Zealand | Competitive Salary + Equity

Artificial Analysis is an independent AI benchmarking and insights provider. We benchmark AI to help engineers and companies understand AI and make informed decisions regarding which AI technologies to use. We are fast growing with a team of 20 and have backing from investors including Nat Friedman, Daniel Gross & Andrew Ng.

We are hiring for four roles: 1. Full Stack Engineer: Full Stack Engineer to support our benchmarking of AI and with communicating these benchmarks to our users. Proficiency in Typescript & Python required. Familiarity with LLM APIs preferred. Tech stack: Javascript/Typescript, Node.js, React/Next.js, Python.

2. ML Engineer: ML Engineer to support our benchmarking and evaluation of AI software stack. You will design and run benchmarks and evaluations of different AI models. Strong analytical skills and proficiency in Python required.

3. Member of Technical Staff: You will design evaluations of different AI models and work to translate technical insights to analysis that helps companies navigate AI.

4. Product Manager (AI Media Generation): You'll work closely with us to develop and enhance our media generation (Image, Video, Speech, Music) arenas and leaderboards, contributing to product strategy and execution at the intersection of creativity and AI.

Apply at hiring (-at-) artificialanalysis.ai with your resume, github and dot points on relevant experience (including anything you've built). Add | HackerNews to email subject line.

Brilliant.org | Software Engineers & Designers | Remote (North America), SF, NYC | Full-time | $170k — $235k | https://brilliant.org

Brilliant is building world-class interactive learning experiences that combine challenging problems, compelling narratives, and delightful visual storytelling.

We're hiring engineers and designers to help craft the next generation of interactive learning and change how the world learns.

Engineers at Brilliant think about both "building the right thing" AND "building the thing right" while pursuing high standards of excellence for ourselves, our product, and our codebase.

Our designers craft interaction patterns that make hard math, science, and computer science concepts feel approachable, delightful, and addictively learnable.

If you're energized by the prospect of doing the best work of your career and changing how the world learns alongside the most talented peers you've ever worked with, you can learn more and apply here: https://brilliant.org/careers.

PlantingSpace | Full-time | Remote (EU time zone) + Quarterly Meet-ups | https://planting.space

We’re building an AI system for analysts and scientists, based on a fundamentally new approach to reasoning and knowledge representation. Our approach differs from LLMs in that we compose algorithms symbolically to represent complex knowledge, and perform probabilistic computations. This enables the AI-driven application of statistical models to different problems, while providing the user with a verifiable reasoning path, and an assessment of the uncertainty in each answer. We are developing applications for analysis and research in domains such as Finance, Strategy Consulting, Engineering, Material Sciences, and more.

This is a rare opportunity for senior engineers and product managers to join us at a pivotal moment and shape a deep-tech product from its earliest stage:

* Program Synthesis Engineer

* Product Software Engineer

* Bayesian Software Engineer

* Senior Product Manager

Find details and apply at: https://planting.space/joinus/

Questions? Get in touch: talent@planting.space

commercetools | https://commercetools.com/ | ONSITE(Berlin, Valencia, London) and REMOTE(Germany, UK, or Spain) positions | Full-time

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commercetools is a leading platform for B2B and B2C commerce, providing a headless commerce platform for brands to build modern commerce experiences. We are hiring for multiple roles.

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Backend Typescript Engineer | London, UK (ONSITE) | https://job-boards.greenhouse.io/commercetools/jobs/66165760...

Engineering Manager | Valencia, Spain (ONSITE) | https://job-boards.greenhouse.io/commercetools/jobs/66532500...

Engineering Manager | Berlin, Germany (ONSITE) | https://job-boards.greenhouse.io/commercetools/jobs/66414660...

Principal Engineer Cloud Architecture | Berlin, Germany (ONSITE) | https://job-boards.greenhouse.io/commercetools/jobs/72329990...

Staff Engineer Search Infrastructure | Berlin, Germany (ONSITE preferred), REMOTE (Germany, UK, or Spain) | https://job-boards.greenhouse.io/commercetools/jobs/67807080...

Resemble AI | San Francisco Bay Area (ONSITE in Mountain View, CA), REMOTE India | Full-Time

We're creating state of the art Generative Voice AI models. Looking for full stack, frontend and machine learning engineers that would love to create prototypes directly with the founders. Recently, we open sourced a state of the art speech enhancement model: https://github.com/resemble-ai/resemble-enhance

Here's what we're looking for:

Frontend Engineer - We're looking for a Frontend Engineer to build intuitive interfaces for our AI platform. You'll work with React/TypeScript to create exceptional user experiences that make complex AI technology accessible to both developers and enterprise users.

Full Stack Engineer - We are seeking a skilled Full Stack Engineer with experience with both Javascript and Python to join us. The ideal candidate will have a strong background in building and deploying web applications, a passion for working on cutting-edge AI technologies, and the ability to collaborate closely with our founders to create innovative prototypes.

Backend Engineer - Looking for Ruby on Rails and/or Python Developers to join our backend team. Scale up ML systems, make inference run more efficiently, and expose public facing APIs.

DevRel - We're looking for a Developer Relations engineer to champion our voice AI APIs and open-source projects within the developer community. The ideal candidate will create compelling demos, technical content, and documentation while helping developers integrate our AI models.

Growth Marketing - Seeking a data-driven growth marketer to accelerate adoption of our AI models across enterprise and developer segments.

If interested, reach out directly to me: zohaib [at] resemble.ai

Raremarq | Founding Engineer | Full-time | Fully Remote | $150K + founding-engineer equity

Raremarq (raremarq.com) is building the Stripe for Auctions — a no-code/low-code platform that lets brands, creators, and businesses embed auctions and dynamic pricing directly into their stores. Our auction engine already powers real-time bidding, payments, and fulfillment for tens of thousands of users, helping sellers earn millions. We’re backed by notable investors including LAUNCH (Jason Calacanis) and Blockchain Founders Capital with more to be announced soon. Our founding team is ex-Google and ex-Amazon, and we’ve been founding employees at multiple startups.

We’re hiring a Founding Engineer to join as one of our first hires. You’ll own the evolution of our core API — taking it from an internal product to a public developer platform powering auctions, bidding, payments, and notifications anywhere on the internet. The stack includes TypeScript (Hono, SvelteKit), Convex, Stripe/PayPal, and modern developer tooling.

The ideal candidate has 4+ years of software engineering experience, strong API design skills, and familiarity with payments, databases, and full-stack frameworks. This person should be eager to take the vision of “Stripe for Auctions” and make it their own with the goal of building a best-in-class, developer-facing platform that can help millions of businesses. Bonus points for experience building developer platforms and/or early-stage startup experience.

We offer competitive salary, founding engineer-level equity, full healthcare, unlimited PTO, and a remote-first culture. Interested? Apply here: https://forms.gle/KnwFTiTigyQnXrzy9

Charge Robotics | Robotic System Operator | Full-time travel (on job sites) Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, driving forward field operations of our robotic factory, working with engineers, and helping install gigawatts of clean energy generation.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics System Operator: https://jobs.ashbyhq.com/charge-robotics/ff699232-5b36-40c2-...

eventfirst | Senior Full-Stack Engineer | Berlin, Germany | REMOTE (CET) | Full-time

We are applying AI to organize corporate events.

We are looking for a senior engineer with at least five years of full stack experience, a strong focus on product and UX, and optionally some experience building LLM based products. Currently we are focussed on building tooling that enables us to capture domain knowledge from experts to streamline prompt creation and evaluation. Our tech stack is Typescript, React, Next.js and Tailwind. On the backend we use Drizzle with Neon, deployed and monitored via Vercel. We have pre-seed funding from a major US VC and are experienced founders. You’ll be working alongside the founders (ex-Apple, ex-Airbnb, ex-Tulip, ex-Tourlane) and will have a chance to shape the company, product and of course the engineering culture.

Apply here: https://taskwise.jobs.personio.com/job/1646275

Parable | Multiple Roles | Fully remote or in office in NYC | Salary + Equity

Parable is the intelligence layer for enterprise operations, we help organizations understand how they are spending time and money and identify the most impactful opportunities for AI and create actionable plans.

We just closed a large $17M seed round, are in market with large enterprise customers, and are founded by a team of exited and experienced founders.

- Staff/Senior AI Engineer on Context Mining - $200K – $325K + equity

- Staff Engineer & Technical Lead – Ontology - $200K – $350K + equity

- Forward-Deployed Engineer - Raw Data - $200K – $325K + equity

- Staff Engineer - Raw Data - $200K – $325K + equity

- Technical Product Manager - Raw Data - $200K – $325K + equity

- RevOps Manager - Sales - $150K – $250K + equity

- Sales Director - Sales • NY Office • On-site - $150K – $300K + commission

Apply here! https://jobs.ashbyhq.com/parable

Website here https://www.askparable.com

Pylon (https://pylonlending.com) | ONSITE Menlo Park, CA

What Stripe did for payments, Pylon is doing for the mortgage industry: We're taking a sleepy industry with backward technology and re-building the stack from the ground up. We're first-principles thinkers, and our team is small, talented and ambitious.

I'm hiring generalists who love coding and want to build something beautiful in an industry where technology written in the 90s is the norm. We're Series A, well funded, and we have traction with customers. Come to Menlo Park and help us turn the $13 trillion US mortgage industry into a set of APIs.

https://jobs.ashbyhq.com/pylon?utm_source=hn-whos-hiring

If you like:

- Programming languages

- Functional or Logic programming

- Operations research & optimization

- Working on an amazing team on a really hard problem

Come join us!

Beacon AI | San Carlos, CA | Hybrid (On-Site) | Full-Time

We’re a mission-oriented company building pilot assistance technology that goes beyond what current autopilot (Level 1) automation can do by creating an AI pilot assistant (effectively R2-D2 for pilots). The platform will make aviation safer and more efficient. Our tech is deployed on the aircraft to help prevent accidents, reduce workload, and increase the effectiveness of both commercial and defense operators.

We’re a Series A, venture-backed startup, backed by: Sam Altman, Costanoa, Scout, and JetBlue. We’ve signed over 12 contracts with major defense and commercial players, and customer demand is growing rapidly, with significant milestones planned for next year!

Our current hiring focus is on the data platform and iOS software. https://beaconai.co/careers

++ Backend and Cloud Infra Software Engineers - Multiple Seniority Levels and Tech Lead Manager

++ iOS Software Engineer - Early Career

We're a lean team, and looking to maintain the high talent and effort density we've built over the last few years. If you're looking to have a direct impact with your work and solve problems that can save lives, we'd love to get the chance to meet you - join us at beaconai.co/careers. Mention in the application that you saw our post on HN.

We’re also hosting a Beacon AI Happy Hour on October 10 in San Francisco. If you’re excited about our mission and curious about joining the team, we’d love to see you there. RSVP Here: https://partiful.com/e/dOW8tvwAF3XQzDkHYFyz

We’re hiring across AI, infra, engineering & product marketing

1. Sr Product Marketing Manager (Stealth AI Time) – San Francisco (Hybrid, relo ok) Own category creation, positioning & narrative for AI-driven timekeeping. Lead GTM + product launches. 7+ yrs B2B SaaS PMM. $120K–$220K + equity. No visa.

2. Sr Fullstack Developer – Remote (B2B, EU pref) Frontend-heavy (TypeScript/React/Vue/Angular), backend Python/Django. Build scalable, high-perf DOM + rendering systems. 7+ yrs SWE. Contract, gross comp TBD.

3. Founding Engineer (FE/FS) @ Yarn (YC-backed) – NYC onsite only React + Python + TypeScript, WebGL shaders, AI video pipelines. 4+ yrs SWE. $170K–$225K + 0.75–1.25% equity. No remote/hybrid.

4. Fullstack SWE @ Thrv – Tiburon/SF onsite Next.js/TypeScript, LLM/AI apps (Vercel AI SDK), Postgres, Drizzle ORM. $150K–$250K + equity. Visa for exceptional candidates.

5. Platform Engineer (AI Infra) – NYC onsite, US citizens only Build infra for Olympus & Athena AI. Python (FastAPI), Docker/K8s, AWS GovCloud, on-prem deployments. $200K–$275K + equity.

6. Forward Deployed Engineer – San Francisco onsite 2–5 yrs SWE, startup/high-bar exp. Customer-facing coding & deployments. Work trial (3 days). $150K–$220K. Visa available.

Apply: bayonle.afolabi@hire1.email (state role).

Jäntra Biosystems | Multiple Roles | San Francisco or Remote | Full-time | Salary + Equity

Jäntra Biosystems is revolutionizing protein structure prediction. We’re building AI models at the intersection of biology and computation. Join us as we unlock life’s molecular machinery.

Open Roles:

- AI Systems Engineer (C++ / CUDA / HPC)

- Structural Biologist / Bioinformatics Scientist (Cryo-EM / AlphaFold / Data Analysis)

What we’re looking for:

Engineers & scientists passionate about AI and biology. C++/CUDA expertise (AI Systems Engineer) or structural biology experience (Bioinformatics Scientist). Familiarity with HPC, GPU clusters, or structural prediction tools (AlphaFold, cryo-EM, etc.).

Why Jäntra: Competitive salary + equity San Francisco or remote Small, fast-moving team Work that matters: advance our understanding of life’s building blocks

Apply: https://jantra.ai/jobs.html email: hello@jantra.ai

Upside (upside.tech)| Data Engineering, ML Engineering, Full Stack, Data Analyst | ONSITE in San Francisco | Full Time

We're hiring for experienced senior/staff equivalent engineers across the stack.

Our team is doing some very interesting work on automated structured knowledge graph assembly, looking for anyone with prior experience working with large scale semi/unstructured datasets, applied NLP&ML background, or otherwise just a strong builder who wants to join something early.

See roles here: https://jobs.ashbyhq.com/upside-tech

You can also email jonas [at] upside.tech and include hn in the subject if you think you're the right fit to contribute but don't see a matching role listed.

Squint | Onsite, San Francisco | Squint is the leading manufacturing intelligence platform. We're leveraging the latest in AI, spatial, and hardware capabilities to accelerate human potential and spark the next industrial revolution.

What makes Squint special?

- Our customers include some of the most iconic manufacturing brands across Food and Beverage, Automotive, and Consumer Package Goods. Work here literally transforms how the world around you is made.

- We're not replacing people with AI, we're up-leveling them; capturing insights, turbocharging workflows on the factory floor, and making every operator an expert.

- We're bringing consumer-grade quality to enterprise software, combining cutting-edge tech with deep customer empathy to build a product that's powerful, magical, and deeply loved by our users.

High Priority Open Roles:

- Product Engineer, High Velocity

- Senior GTM Recruiter

- Strategic Enterprise Account Executive

- Senior Sales Engineer

- Sales Engineer

- SDR Manager

View full list of roles and apply here: https://jobs.ashbyhq.com/squint.ai?utm_source=Hackernews

Goblins | https://goblinsapp.com | Founding Engineer #3 | Williamsburg, New York | ONSITE | $100-200k (+ generous equity)

In education, we have always traded off scale and quality. In a 30-student math class, half of kids are ready to accelerate while half are still working on their foundational skills, but teachers cannot be in 30 places at once, giving each student one-on-one support.

Until now. Imagine 30 teachers in every classroom—that's how Goblins feels. Students draw math on any device, and our AI figures out the "why" behind their confusion, giving instant feedback and building conceptual foundations. (Preview: https://youtu.be/SH9UomzBMUs)

Goblins launched to school districts in the spring of 2025. Since then we've built a waitlist of thousands of teachers and sold Goblins to districts across the US (we'll hit 100k+ paid students this year!). We are in the unique position of having a product that is both highly differentiated and demanded :)

Technical problems we've worked on in the past:

→ Building knowledge graphs that adapt to student performance in real-time, routing them to the optimal next problem they should solve to maximize learning and engagement.

→ Extending our handwriting recognition from digital canvas to real paper through Chromebook cameras (think real-time OCR on math equations through low-quality webcams with poor lighting and limited CPU).

→ Creating interactive mathematical lessons (think 3blue1brown, but conversational) that remediate student misconceptions.

You'll be joining founding team members Sawyer (CEO, former Head of Design at X1 [acquired by Robinhood] and math teacher) and Alp (CTO, ex-Stripe and Amazon), plus two other exceptional founding engineers.

We move fast, care deeply about craft, and obsess over delighting users. If you're interested, email alp@goblinsapp.com :)

Arcol | Senior Software Engineer | NYC, SF, or Remote (US) | Full-time

Arcol (arcol.io) is a small, high talent density team building the future of building design - a future that's collaborative, fast, and intuitive. We're a web-native, fully collaborative 3d design tool modernizing the experience of architectural design for teams of all sizes.

We're looking for senior engineers with experience in modern web technologies - some of our key technical building blocks are Typescript, Rust, wasm, WebGL - and a strong ownership mindset. Experience with computational geometry, computer graphics, or similar a strong plus. This role sits at the intersection of solving deep technical foundational challenges with shipping a product that solves real problems for real people.

Reach out to me directly at thomas@arcol.io or peruse our careers page (https://www.arcol.io/careers) - we'd love to hear from you!

Zetier | Multiple US locations (VA, PA, FL, TX, CA, NY) | ONSITE | Full-Time

Zetier develops real-world tools and capabilities to secure our nation in the short- and long-term. If you’re excited to delve deep into low-level systems, exploit dev, and more alongside a group of passionate hackers, then we’d love to hear from you.

Open-sourcing our work as much as possible is integral to Zetier and what we stand for. As folks who learned to hack on platforms like Linux, we aim to give back to the OSS community. Not only do we encourage our engineers to contribute, but we go a step further, adding monetary incentives to do so.

We’re looking to find the right people for a range of roles, including:

+ Vulnerability Researcher

+ Android Security Engineer

+ CNO Embedded Engineer

+ CNO Software Engineer

+ IT Security Engineer

+ Senior Technical Lead

+ Business Developer

All open positions: https://zetier.breezy.hr/

Our approach and benefits: https://zetier.com/careers/

Different skill set? Drop us a line at hello@zetier.com

Sourcegraph | San Francisco | Full-Time | SWE, ML Engineer, Forward Deployed Eng, Head of Design, Product Marketing Manager (all roles code) | https://sourcegraph.com

Sourcegraph is hiring for Amp (https://ampcode.com), the most effective multi-model AI coding agent. We're a team that ships and we build Amp in a crazy way (see https://ampcode.com/how-we-build). Backed by Sequoia, a16z, Craft Ventures, and Redpoint.

We’re hiring people who are doing impressive things with coding agents. If that's you, show us something you've built or published or apply here: https://grnh.se/0572f98b4us

Sorare | Backend Software Engineer | ONSITE (Paris) | Full-time

Sorare is a fantasy sports gaming experience and marketplace featuring officially licensed digital player cards (minted as NFTs).

Tech Stack: PostgreSQL / Rails / GraphQL / React

We're hiring a replacement for a colleague who's leaving for a world tour.

If you want to read the objective offer you can find it below, but here is the subjective view of what makes me enjoy my job as a sofware engineer there:

- very competent and kind coworkers

- small team that moves fast and decides quickly

- passionate user community

- top work conditions

- bonus: as a sports fan this is heaven

Don't hesitate to reach to me if you have any question:hugo [at] sorare.com.

Read more: https://sorare.com/careers?jid=c81d9cc6-4fcc-472a-a927-e6941...

SmarterDx | 150-250k+ + equity + benefits | Remote (US only) | Multiple roles | https://smarterdx.com/careers

We build clinical AI that empowers hospitals to analyze the complete record of every patient to fully capture the value of care delivered. Founded by physicians in 2020, our proprietary AI platform understands the nuances of clinical reasoning, enabling hospitals to accurately reflect every patient visit for fair reimbursement. By doing so, hospitals can recover millions in earned revenue, enhance care outcome and quality metrics, and optimize healthcare operations.

The current team is very high functioning (MD + data scientist combos, former ASF board member, Google and Amazon engineers, Stanford LLM researchers, etc.) and initially scaled the company to $1MM+ in contracted revenue without raising capital.

SmarterDx recently became part of Smarter Technologies as part of a $1.1B deal by New Mountain Capital, a leading growth-oriented investment firm. We have been backed by top investors including Floodgate (Lyft, Twitch, Twitter), Transformation Capital, and Bessemer for a total of $71M, including our $50M Series B, and are experiencing an incredible growth trajectory customer and revenue wise with no signs of slowing down with 150% YoY headcount growth! This time last year, we were at ~110 employees, and are above 280 as of today!

We are looking for: Security Engineering Manager - Staff and Senior SWEs, Full Stack and Backend focused - Staff ML Engineers - Data Science Managers - Staff Data Scientists - Senior Data Analysts - Senior Product Managers - More!

We have PMF, and it's time to scale! For more and to apply, see https://smarterdx.com/careers

Mozilla | Remote (US) | Principal Eng

My team is hiring for a really exciting position at Mozilla! We’re looking for a founding technical lead on a browser-automation effort for AI systems. This role is in the New Products division and has a lot of agency and autonomy.

This role will shape the long-term architecture and roadmap, write production-grade code across multiple languages, and build the core distributed systems and tooling. This is a rare and unique opportunity to set the direction and guide a high-leverage team, all while helping shape the future of interaction on the web.

Full job post here: https://mozilla.org/en-US/careers/position/gh/7230082/

Email jervin [@] mozilla.com and mention that you saw this on Ask HN: Who is hiring.

ELDRICK (https://eldrick.golf) | ML Engineer (must be a golfer) | REMOTE (US preferred)

ELDRICK is building the world’s fastest-growing AI golf club fitter. We recently launched our beta & fittings are growing quickly. We now need an ML Engineer who golfs to fine-tune our existing model for best-in-class fittings. Non-golfers will not be considered.

You’ll:

- Fine-tune and optimize our current ML model for accuracy + trust

- Work with swing/ball data (club speed, ball speed, spin, launch, carry)

- Ship improvements fast with the founding team

You have:

- Hands-on ML experience (PyTorch/TensorFlow/sklearn)

- Proven ability to tune and evaluate models in production

- Startup speed and independence

- A real golf game (handicap required with your application)

Why join:

- Early technical role in a sports/AI startup with breakout traction

- Shape the model golfers will rely on to choose their clubs

- Remote-first, US preferred

Apply: wittman [dot] c [at] gmail — send resume + handicap.

Autokroma.com | C / ffmpeg / codecs / GPU / AI dev workflows | Full-time | HYBRID REMOTE-ONSITE | Porto / North of Portugal

We do audio video software : video editing plugins, web panels, GPU visual effects, encoders, decoders, AI assisted development & testing. All levels are welcome but be sure to make me understand what are your current capabilities and goals. You will work close to the code, user requests, whole UX in general, I try to minimize the layers between developers, products and final users. If any of those topics are of interest to you, and you're around Porto to meet me : send me an email, the first part of the email is "jobs" and after the @ the domain name. Tell me your story, what you're looking for in your life now, a previous bad work experience you'd like to avoid and a good work experience that inspires you for the future.

Estuary | US Based / Remote | Full-time – https://estuary.dev/

Estuary is a VC-backed startup building the next generation of real-time data infrastructure. Our platform, Estuary Flow, combines change data capture (CDC), stream processing, and declarative configuration to unify real-time and batch data movement.

We’re open-source, developer-first, and focused on making data engineering radically simpler.

Estuary is a small, high-trust team with deep experience in distributed systems, stream processing, and data tooling — and we’re growing quickly.

We’re hiring for:

Senior and Staff Backend Engineers (Integrations) – 5+ years of backend engineering experience. Proficiency in Go; Rust is a big bonus.

Own and scale high-impact systems that power real-time data pipelines. You’ll work on complex integrations with external APIs and databases, improve our internal connector frameworks, and tackle deep challenges in performance, reliability, and developer experience.

Fullstack Engineer (UI Team) – Our first fullstack hire, working across Rust + React/TypeScript. High-impact role shaping the customer experience: build GraphQL APIs, optimize Rust backend systems, and deliver product features end-to-end.

https://estuary.dev/about/#careers

What we’re looking for: Engineers who care about building reliable, maintainable systems and enjoy working with complex APIs and data flows. We value curiosity, clear communication, and a willingness to learn.

Bonus points for experience with CDC tools, open source contributions, or fast-paced startups.

To apply: Email your resume to careers@estuary.dev

Shield AI | Autonomy Applications Manager | Full Time | ONSITE Washington DC

Shield AI's mission is to protect service members and civilians by creating intelligent systems.

My team needs a manager, its a very well positioned team at a rapidly growing company working with some really awesome people. Any autonomy or robotics experience is a huge plus https://jobs.lever.co/shieldai/7952271c-8578-42d8-a587-4707c...

Contact info on my profile if you have any questions I'm happy to chat!

Third Iron | Senior Full-Stack Software Developer | REMOTE (US)

Do you want to develop software that helps scientists, doctors, and historians discover breakthroughs? Join our small, fully-distributed software development team to help connect scholars of all disciplines with peer-reviewed journal articles.

Our company has been remote-first since we began in 2011. You’ll join a team with plenty of experience putting into practice what works well remotely, and avoiding what doesn’t. Third Iron has never taken VC money, and we’ve never had layoffs. Our approach to hiring and selling our products helps us feel confident that this pattern will continue far into the future.

Third Iron software is used by researchers at over 1,500 libraries, including universities, hospitals, corporations, and government agencies located in over 35 countries.

In a refreshing change from advertising-dependent tech companies and those who sell user data, we instead have a business-to-business model. We sell our subscription-based services to libraries, and anyone affiliated with one of these libraries can use our software. We do not sell user data. Our focus is on building the best software to enable research that changes the world.

We’re looking for a developer interested in full-stack work, since we have a variety of upcoming initiatives, some being mostly front-end, some being mostly back-end, and some a balance of the two.

The front-end of our stack primarily consists of JavaScript, using EmberJS for two major projects, and React for two others. Our backend is written in NodeJS, and features data storage using PostgreSQL, Elasticsearch, and CouchDB, and hosting primarily on AWS and HEroku.

If you’re interested in this fully remote position, we're interested to chat with you! Please email careers@thirdiron.com or apply at https://thirdiron.applytojob.com/apply/McK2VdxTuX/Senior-Ful...

Source (https://source.network)| USA/Canada: REMOTE | Full-Time | https://careers.source.network At Source, we aim to revolutionize developer data management for the open web. Our mission is to simplify data handling for edge devices, local-first software, and distributed infrastructures, allowing developers to unleash their creativity and build world-changing tools that realize the open web’s full potential.

Our suite of new technologies work together to make it easy for developers to ship edge and local-first software. We empower developers to create software and devices that seamlessly communicate, offer granular data control, and secure data cryptographically to ensure trust. Join us in shaping the future of data management and the open web.

We’re growing fast and are looking to fill the below positions:

ENGINEERING

- Senior Zero-Knowledge Engineer - https://source.network/careers/senior-zero-knowledge-enginee...

- Head of Developer Relations - https://source.network/careers/head-of-developer-relations-r...

- Protocol Engineer (Distributed Systems) - https://careers.source.network/engineering/protocol-engineer

- Software Engineer, Backend (Database/Distributed Systems) - https://careers.source.network/engineering/software-engineer...

See all our open positions here: https://source.network/careers

Crux | cruxclimate.com | FULLY REMOTE (US/Canada)| Full-time | Hiring across eng, Product, Design | $140k-$250k base + equity

Series B (a16z backed) Crux is the capital markets platform changing the way clean energy and manufacturing projects are financed in the U.S. Crux's platform, market intelligence, and expert team help developers and manufacturers unlock financing through all stages of project development and operation.

Hiring for: - AI Engineers - Full Stack Engineers - Data / ML Ops Eng - Product Designer - Product Manager - Sr. Tech Recruiter - Additional GTM/Ops

More about the team here: https://www.notion.so/Engineering-Crux-26cd41408c6780728eafd...

Apply Here: https://jobs.ashbyhq.com/cruxclimate?utm_source=mr

LM Studio (lmstudio.ai) | Systems Eng, Application Eng, Frontend Eng, Applied AI | New York City | ONSITE | Full-time

We're hiring for the following roles:

- Systems Eng: work on LM Studio's runtime and internal libraries, contribute to llama.cpp and MLX (C++, Python)

- Application Eng: work on LM Studio's desktop app, daemon, SDKs, and CLI (TypeScript, NodeJS, C++, React)

- Applied AI: push the boundaries of what's possible for agentic software with local AI (Python, C++, TypeScript)

- Frontend Eng: invent new kinds of human / AI interaction UX, ship software to millions of people worldwide (TypeScript, React)

See all roles and apply here: https://lmstudio.ai/careers

JustPark | Lead Frontend Engineer & Lead Android Engineer | London | Remote or Hybrid | Full-time

JustPark is the premier partner offering both B2B solutions for destinations and B2C services for drivers, giving us the best of both worlds. We simplify the entire parking experience. From venues and councils to private driveways, our platform makes it simple for drivers to find, book, and pay for parking—while empowering our operating partners to deliver exceptional parking experiences.

Lead Frontend Engineer: responsible for leading and evolving the frontend engineering strategy across JustPark's web platforms. The position involves technical leadership of the frontend engineering squad, architectural oversight, and ensuring high-quality delivery of frontend solutions that serve millions of users globally across our customer-facing applications, internal tools, and client portals.

Lead Android Engineer: drive technical excellence and best practices in Android development, architect and oversee the implementation of new features for Android platform, balance Android-specific optimization with cross-platform consistency requirements, collaborate with product and design teams to deliver exceptional Android user experiences.

Amazing benefits include free lunch on office days, free snacks & drinks, free concert tickets to the O2, generous holiday policy (up to 38 days a hear inc. bank holidays), private medical insurance and much more.

Apply directly using the below links.

For Lead Frontend Engineer: https://apply.workable.com/justpark/j/DB918AA730/

For Lead Android Engineer: https://apply.workable.com/justpark/j/248B41BD2A/

OnFrontiers | Senior Engineer | Hybrid/Remote | NYC or Baltimore

OnFrontiers is hiring a strong senior engineer with experience programming agents to lead development of our agentic intelligence platform for government contractors.

We're looking for a passionate, curious engineer, who wants to work closely with our founding team and contribute as both a technical expert and a member of the product leadership.

In the role, you'll lead development of our indexing services, LLM integrations and APIs, as well as our SaaS platform, as we continue to scale. The role is hands-on but has the potential to grow into management as the team scales.

Core technologies include OpenSearch, Postgres & PGVector, Go, Python and React, all running on AWS.

https://www.onfrontiers.com/job-postings/lead-engineer

Interested, feel free to email me directly: lgsilver[at]onfrontiers.com

Foxglove | Mostly Onsite - San Francisco | Full Time | https://foxglove.dev/

Foxglove is the leading observability stack for robotics and physical AI. We accelerate robotics development with logging, data management, and multimodal visualization. We're well funded (Series A, ~45 people) and assembling the most talented team in the industry to build a platform for all types of robots. Sound interesting? Join us!

- Senior/Staff Frontend Engineer (typescript, react, webgl, rust, wasm)

- Senior/Staff Backend Engineer (rust)

- Senior/Staff Backend Engineer (rust, remote - Australia/NZ)

- Forward-Deployed Engineer

- Account Executive

- Solutions Engineer, Robotics

- Dev Relations

Remote friendly: All roles we are open to remote for experienced candidates (staff-level or prior experience at a top AV or robotics company)

https://foxglove.dev/careers

AppFolio | Staff Software Engineer | Full-Time | Santa Barbara, San Diego or Remote (US)

AppFolio streamlines and automates real estate management. We build a SaaS product that serves property managers, owners and investors.

I'm hiring for our screening and application team. Join me and help us modernize the applicant experience as they apply for their next home/apartment. This is the top of funnel for AppFolio's primary customers and has a major impact in their ability to fill vacancies with trustworthy tenants.

Staff level experience with React, Expo, Rails preferred. Apply here: https://www.appfolio.com/open-roles?p=job%2FombOvfwA

Sumble is the newco from the founders of Kaggle. We are hiring software engineers, data engineers, machine learning/ai engineers, growth and a designer.

Can view our roles and apply here: https://apply.workable.com/sumble-inc/

As background, we are building a knowledge graph from web data with a first focus on data for go-to-market teams. We use web data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate.

Our long-term vision is to become the primary destination for accessing high-quality web data. Try the product at sumble.com.

We are a team of 15, including 10 engineers with experience at companies such as Google, Meta, Stack Overflow, and Kaggle.

Y Combinator | Dogpatch, San Francisco, CA | Full-time, In Person | https://www.ycombinator.com

YC has been building ever-more ambitious software for founders to succeed -- since Garry returned. In the last year, our team delivered:

* Safe tools that has processed $1B+ in seed funding in last 4 batches

* Fundraising CRM for founders manage their fundraise -- used by all founders

* Work at a Startup has 1M+ candidates on it, with 1000s of hires/year

There are ton of ways we see YC Software benefitting our alumni and investors -- and we want founder/founding engineer minded people to drive each into standalone products.

Yet in reality, we're a team of 14 full-stack product engineers, the company is 85 people, and we intend to stay small and scrappy. I was the 7th engineer at salesforce and loved the early stage, and we get to be that way at YC... indefinitely.

YC is also knee-deep in applying AI tools and techniques across all of our product surface areas, and investor-focused work is no exception. We’re happy to share more when we chat in person.

We also want to work with people who love building full stack web apps. While our stack is Rails, React and Postgres, mostly we’re just a bunch of pragmatic builders who are excited about shipping and having impact.

Two roles are posted below: Investor Software and Post Batch (all SW after the batch).

If you're interested, read more below and email me directy with what you'd be excited to build here: ryan@ycombinator.com.

* https://www.ycombinator.com/companies/y-combinator/jobs/VT20...

* https://www.ycombinator.com/companies/y-combinator/jobs/fK75...

Opsin Security | San Jose / SF Bay Area (Hybrid, 2–3 days on-site) | Full-time | https://opsinsecurity.com/careers Opsin helps enterprises secure and deploy Enterprise Search/AI systems (e.g. Microsoft Copilot, OpenAI Enterprise, Google Gemini) responsibly without exposing sensitive data. Venture-backed by Race Capital. You’ll work directly with the founders on a small (~10) person team shipping fast in a huge green-field space. We are hiring for:

- Senior AI Engineer – 5 + yrs backend + 2 + yrs ML/LLM; Python, SQL, AWS/GCP experience; comp + eq (https://www.opsinsecurity.com/jobs/senior-engineer-ai-engine...)

- Senior Full-Stack Engineer – 4–8 yrs shipping product; React/Next.js + API & DB design + Nest.js; TypeScript, Python a plus; comp + eq (https://www.opsinsecurity.com/jobs/senior-engineer-full-stac...)

- Staff Backend Engineer – 8 + yrs building scalable systems + 2 + yrs technical leadership; architect data-driven services for LLM security; comp + eq (https://www.opsinsecurity.com/jobs/staff-engineer-backend)

- Founding Account Executive – full-cycle sales to CISOs/CIOs; 5 + yrs enterprise SaaS; cybersecurity/Microsoft ecosystem a plus; ~50% travel; comp + eq (https://www.opsinsecurity.com/jobs/founding-account-executiv...)

Tech stack: Python, TypeScript (Nest.js), React (Next.js), Postgres, Azure, modern LLM tooling

How to apply: email your résumé + a short note to careers@opsinsecurity.com with subject “HN – [role]”, or apply on our careers page.

I’m Shay Nehmad, Founding Engineer at the company. Happy to answer questions at shay@opsinsecurity.com or on LinkedIn.

Modash.io | Multiple Roles | Remote (EU) | Full-time

• Modash is an end-to-end influencer marketing platform for Shopify stores.

• We help every creator earn a living.

• Tallinn is home. Europe is our lab. Canada joins the frontlines. We're everywhere that matters.

• 65 person team, raised €11M in Series A funding, ARR growing 2x YoY.

—

Toronto, Ontario, Canada

Technical Customer Success Manager, API https://apply.workable.com/modash/j/96C4941FE6/

Account Executive https://apply.workable.com/modash/j/CC8A1D1FE4/

—

Remote, Europe

Senior Technical Customer Success Manager https://apply.workable.com/modash/j/91BE5B7E04/

Senior Product Designer https://apply.workable.com/modash/j/5C9A805E59/ (€50k-80k)

Senior Data Engineers https://www.modash.io/careers/senior-data-engineer

Senior Backend Engineer https://apply.workable.com/modash/j/D4FA5BA3E6/

Senior Search Engineer https://apply.workable.com/modash/j/C24F8E8EB6/

Senior Product Engineers https://www.modash.io/careers/senior-product-engineer (€60k-100k)

—

More roles: https://www.modash.io/careers

Surge AI (https://surgehq.ai/careers) | Software Engineers (full-stack / product https://surgeai.notion.site/Product-Engineer-4211688ff99b46d...) and Strategic Project Lead (https://surgeai.notion.site/Strategic-Projects-Lead-Generati...) | Full-time | ONSITE SF or NYC Hybrid

Our mission at Surge is to build the human infrastructure behind the next wave of AI and LLMs. We operate a data platform that powers AI teams at OpenAI, Anthropic, Meta, Google, and more. This year, we've been focusing on RL environments and agentic workflows to help our clients ship agents that interact with the world. Here are some examples of our past work:

- Creating the GSM8K dataset: https://www.surgehq.ai/blog/how-we-built-it-openais-gsm8k-da...

- Collecting RLHF data for Anthropic's Claude: https://www.surgehq.ai/case-studies/anthropic-claude-surgeai...

You’d be joining a rapidly growing team of former engineering and ML leaders from Google, Meta, Twitter, and Airbnb. We work in small groups, ship quickly, and value autonomy and ownership. No previous AI experience is required, if you have the engineering skills you can learn what you need on the job.

We're looking for senior engineers to work out of our offices in SF or NYC, or remotely. Please reach out to us at careers@surgehq.ai with a resume and 2-3 sentences describing your interest. Excited to hear from you!

Extend | Senior Software Engineer, ML Engineer, AI Engineer | NYC | Full-time | $250k-$350k + equity

Extend is building a LLM-native document processing platform (massive market w/ low NPS existing solutions) (https://extend.ai/)

Apply here: https://jobs.ashbyhq.com/extend

--------

Why you should consider joining:

- High comp (both cash & equity), culture of high impact and ownership, in-person in NYC

- We blew past 7-figures in ARR with a team of 6, and have grown 5x YoY

- Our customers include companies like Zillow, Chime, Flatiron Health, Brex, Mercury, Checkr, and many more

- We're supporting customer and revenue metrics with 1/2 the team size of other startups, so everyone joining at this stage will have outsized impact

- Backed by YC, Homebrew, investors from OpenAI, and more

Imubit | Sr. Site Reliability Engineer (SRE) | Remote (USA) | Full-Time

At Imubit, we’re not just optimizing industrial processes - we’re redefining how entire industries operate. As the pioneer of Closed Loop AI Optimization (AIO), we are leading the charge in transforming refining, chemical, cement, and mineral mining plants with AI-driven automation. Our Optimizing Brain™ Solution puts the power of AI directly into the hands of engineers, enabling them to build and deploy their own multipurpose models to unlock new levels of efficiency, profitability, and sustainability.

I'm hiring for this position:

- Sr. Site Reliability Engineer: https://imubit.com/careers/job/?gh_jid=4085044008

Zania.AI (https://www.zania.ai) | Palo Alto, CA | Full-time | Onsite

Zania is hiring for multiple positions and just raised a Series A in funding. Our secure agentic AI performs complex risk and compliance work - from controls testing, risk assessments to audits, and more - with provable accuracy in minutes.

Currently hiring for: * AI Engineers and Product Designers

Chroma | ONSITE - San Francisco | Full-time | https://trychroma.com

Chroma is the open-source search and retrieval database for AI applications. It's an open-source database with vector, regex, and full-text search. We support local, single-node, and cloud hosting. Help build the future of context engineering!

We're a team of 17, all engineers today. We work in Rust, Python, Typescript, and Go.

We're hiring for these areas:

- Product design

- Production engineering

- Platform engineering (Rust)

- First GTM hire

Apply here: https://jobs.ashbyhq.com/trychroma/9ed3aee8-07dd-44e3-9ca1-d...

More details at: https://careers.trychroma.com

Checkly | Multiple Roles | REMOTE | Full time | https://www.checklyhq.com/

Checkly helps engineers build reliable products by unifying testing, monitoring and observability. OpenTelemetry, Playwright, and Monitoring as Code are our foundation for unifying performance and reliability. In 2024, we raised $20M in Series B funding from Balderton, CRV, and Accel to take things to the next level.

-Senior Account Executive (Remote, USA)

-Senior Backend Engineer (Remote, UTC +3 to UTC -3)

-Staff Product Manager (Remote, UTC +3 to UTC -3)

-Senior Product Marketing Manager (Remote, UTC +2 to UTC -4)

-Senior Customer Solutions Engineer (Remote, Europe/UK)

See the full descriptions and apply here (and mention HN): https://jobs.ashbyhq.com/checkly?utm_source=hn

CCV Payments | Junior to mid-level software engineer | Onsite (NL) | Full-time | €50k-€60k | https://ccv.eu

About us: From facilitating the first electronic payments in the Netherlands in the 70s, to offering the first mobile payment terminals there and enabling next-gen online payment services throughout Europe from the 00s and onwards; CCV has always been a pioneer in payment.

Role overview: As a Software Engineer, you will work in a team of 30 employees focuses on innovating reliable payment terminals and the underlying systems. This is based on customer requirements, developments in the European payment market, and changes in security standards (PCI, Nist, Dora). You will work on applications that ensure secure loaded of software and keys (initial and remotely) onto Linux and Android payment terminals. The applications are written in C# and interact with, among others, RabbitMQ, Microsoft databases, ERP systems, and Utimaco hardware security modules (HSM's).

What we’re looking for: 1-5 years of software engineering experience (.Net, C#) and familiar with cryptography (RSA, AES, Eliptic Curve).

The work is highly technical and challenging. If this sounds like something you're passionate about, I invite you to visit

https://www.ccv.eu/nl/over-ccv/werken-bij-ccv/vacatures/secu... and apply!

Dash0 | Multiple roles | FULLY REMOTE | Full-time | Salary + equity

Dash0 is a fast-growing, venture-backed startup on a mission to make observability radically easier for every developer.

We fully embrace OpenTelemetry, Prometheus, and open standards, and our "welcome present" to the OpenTelemetry community, OTelBin, a free tool for editing, visualization and validation of OpenTelemetry collector configurations, is being extremely well received by the community.

We’re currently hiring in multiple roles across engineering, design, and product:

* Senior Product Engineer – Backend (Remote EU)

* Senior Product Manager – Cloud Integrations (Remote EU)

* Senior Product Manager (Remote EU)

* Senior Technical Writer (Remote)

* Technical Writer (Remote)

Apply here: https://careers.dash0.com/

Actively AI| Multiple Roles | In office in NYC | Salary + Equity

What Cursor has done to revolutionize coding, we are looking to do for revenue. Every large company spends 40-50 cents of every dollar they earn on sales & marketing, and it’s very inefficient because data lives in so many different systems, sales reps are stretched thin doing manual work, and products are rapidly evolving.

It’s why we are building the agent and intelligence framework for enterprise scale GTM that guides every sales motion across the funnel — from SDR outreach to AE deal strategy to cross-sell and expansion. It’s an intelligence layer that sits on top of every sales tool and with external browsing that is then customized to your specific products & GTM motions.

It’s a massive technical challenge: - Intelligence at scale: modeling millions of accounts, real-time signals, and contextual history into per-account reasoning agents. - AI Agents & Chat: designing systems across “push” (recommendations) and “pull” (interactive assistants), with extensible skills customers can train themselves. - Data & Infrastructure: creating a new framework for real-time, per-customer agents that simplifies pipelines, scales efficiently, and cuts costs (we’ve already cut cost per account by 50% through smarter eval-driven approaches). - Wall-to-wall product: from self-serve UI to Slack integrations, from predictive models to generative copilots — we’re building an AI operating layer for GTM.

Why Join Engineering at Actively: - Customer-driven impact: engineers directly go onsite and spend time with customers, deploying agents that reshape workflows at companies like Samsara and Justworks. - Category creation: there’s a huge opportunity to build the pre-dominant AI company for GTM with a massive TAM - Cutting-edge AI: opportunity to push the frontier of reasoning agents, eval-driven development, and scalable intelligence. - High-caliber peers: we’re ex-Instacart, Scale AI, Stanford AI researchers, and operators who’ve built at scale before.

Open roles: https://www.actively.ai/careers

Hiya Is HIYAring an AI Engineer in Seattle!

https://www.hiya.com/company/careers?ashby_jid=5d361735-05a7...

AI Engineers are responsible for developing and integrating AI solutions into Hiya’s products, focusing on rapid iteration, prompt engineering, and practical application. You'll fine-tune and optimize foundation models, craft sophisticated multi-agent systems, and invent novel solutions to power the next generation of voice intelligence.

Zencastr | Senior Backend, Fullstack, ML Engineers, Data Analyst | REMOTE (Americas, UTC-1 to UTC+1) | Full-time

We're building the podcast recording platform that makes pro-quality audio accessible to everyone. Fully distributed team, scaling fast.

Looking for senior engineers who care about performance and ownership: - Backend: Node.js/TypeScript, Redis, MongoDB, APIs at scale - Fullstack: React + backend chops - ML: Production ML systems, speech/audio, MLOps - Data Analyst: SQL, BI tools, product analytics (3+ years)

Use LLMs for homework (we encourage it). Ship fast, own outcomes, work from anywhere. Small team, real impact, profitable company.

Apply: https://jobs.ashbyhq.com/zencastr (mention HN)

WireScreen (Series A) | Senior Software Engineer | NYC - hybrid | Full-time | $165k-$200k base + equity | https://jobs.ashbyhq.com/wirescreen/158fd72f-fc2f-47a3-bdb5-...

WireScreen is a fast-growing Sequoia-backed Series A startup building the go-to open source intelligence platform for navigating global supply chains and China-related risk. While China maintains some of the world’s most detailed corporate ownership records, the real challenge is connecting the dots. That’s where we come in—surfacing the networks, relationships, and financial ties behind companies to support national security, compliance, and regulatory oversight.

We’re hiring on the backend to help solve one of the hardest problems in data engineering: building a production knowledge graph from millions of fragmented, inconsistent Chinese corporate records where traditional approaches break down. Our PySpark/EMR/Airflow pipeline is just the foundation. The real challenges are in entity resolution across transliterated names and obfuscated ownership structures, bipartite matching algorithms and inferring relationships. We build our product on top of that with a Django/FastAPI/React stack to help our users access that knowledge graph to analyze and investigate any risks they should be aware of.

If you have prior startup experience, can bring strong Python (PySpark is a big plus) experience and have previously worked with TB-scale data sets - we’d love to talk to you.

Apply here: https://jobs.ashbyhq.com/wirescreen/158fd72f-fc2f-47a3-bdb5-...

Happy to answer any questions - you can reach out to me here or at leo.green@wirescreen.ai - I'm a recruiter with WireScreen, but if I don't know the answer I'll ping our engineering folks and come back to you fast.

Sentry | San Francisco, CA | Full-time

Sentry helps devs catch & fix bugs — used by millions of devs worldwide. We’re growing the platform and product surface area and hiring aggressively across engineering:

Highlighted Open Roles (SF, CA):

- Senior Staff Engineer, Platform

- Staff Machine Learning Engineer, AI

- Engineering Manager, Analytics Platform

- Engineering Manager, Product Platform

- Senior Software Engineer, Developer Infrastructure

- Senior Software Engineer, Infrastructure

- Senior Software Engineer (iOS), SDK

- Senior Software Engineer, Issue Workflow

Apply here: https://sentry.io/careers/#openings

Aesthetic | Full Stack | FULLY REMOTE | Full-time OR Contract | Cash + Equity

Aesthetic is a venture-backed consumer app that lets you dress like your favorite influencer at a fraction of the cost. We're currently sitting at around 200k users and scaling fast.

We're hiring for a couple of roles: - Senior Full Stack - Paid Engineering Internships

Tech Stack: - Expo - AWS(Lambda, OpenSearch, S3, DynamoDB) - Next.js - Supabase

Must Haves: - Self starter - Willing to work late hours - JS/TS fundamentals - Obsessed with learning

Interested? Email me your latest project: kevin [@] myaesthetic.ai

Try our product: https://www.instagram.com/myaesthetic.ai/

SpruceID (YC W21) | REMOTE (US-Based Preferred) | Full-Time | spruceid.com

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users.

The demand for trusted digital ID is accelerating as AI deepfakes begin to destroy most of the ways we use to verify identity today. How private or secure is it to hold your driver's license or passport up to a webcam to get a bank account? Was it ever private or secure? Stable diffusion can break so much of this already. Society will need trusted digital IDs, and our mission is to allow them to be controlled by individuals, with safeguards to prevent descents into surveillance states and checkpoint societies.

We are the main implementers of category-defining initiatives such as the digital ID program for the California DMV, and the verifiable digital credentials program in Utah. We are private sector participants in NIST's National Cyber Security of Excellence initiative for privacy-preserving digital ID.

Today, we are hiring highly capable engineers who care about making a real impact in improving public services, digital autonomy, and user privacy for the world. We work closely with public sector agencies, and everyone on our team has a high regard for those in the public service. We have a strong engineering culture. We are not a SaaS or AI company, and our roles are not for the faint of heart. You will be expected to work hard and learn a lot in this role.

Our engineers are incredibly ambitious. On any given day, they may write great Rust/C#/TypeScript, deal with mainframe dumps, read policy documents, respond to technical RFIs/RFPs, manage on-prem environments, implement new NFC + Bluetooth protocols in Swift/Kotlin, create CI/CD processes that enforce W3C accessibility guidelines and i18n requirements, rewrite lost specs from disassembled binaries, and design new protections for public key infrastructure. It is a team effort, and people with T-shirt shaped skills are able to collaborate and learn a ton from each other every day.

The potential impact of this work cannot be understated, and this is not the right job for you if you want to "join a cool AI startup" and make a fast exit. However, if you care about our mission, then you will have the opportunity to make meaningful outcomes for society that will make you feel proud.

See our roles here: https://jobs.lever.co/sprucesystems/

If you feel very strongly about what we do, please email me directly with your reasons and resume at wayne AT spruceid.com.

Hiring Tech Lead - Backend Engineer - AI Engineer - Staff Frontend – REMOTE LATAM - Tech Lead in San Francisco We build AI tools that help high-volume law firms manage their caseloads more efficiently. Our first product—an AI assistant that transcribes and classifies inbound calls—is in production. We’re now expanding into case tracking, follow-ups, and full workflow automation.

Looking for:

Tech Lead: Based in SF. Remote work with 1 week/month onsite. Lead a senior team, shape product and tech, work closely with founders.

Senior Engineers (Backend, Frontend, AI): Remote across LATAM. Build fast, useful tools. Small, experienced team. Real autonomy and product impact.

Tech Stack: Python, TypeScript, Postgres, Kubernetes, GCP Languages: Spanish + English for leadership. English only OK for engineers.

Apply here: tramcase.com

CourtDrive | Principal AI Engineer | REMOTE| Market | Full-time | https://www.courtdrive.com/

At CourtDrive.com, we are building an AI Docketing Assistant that enables law firms and other power courthouse website users to become more efficient by automating daily tasks. We’re based in Los Angeles but have a remote team worldwide (Canada, Europe, Armenia to name a few). Your role as Principal AI Engineer will be to lead CourtDrive's AI strategy through model evaluation, fine-tuning, and data collection. You'll work alongside our engineering team to bring AI features from concept to production, while elevating the team's understanding of language model capabilities and best practices. Your expertise will be crucial in determining how we can best leverage AI to enhance our solution.

This role offers a unique opportunity to apply deep language model experience in a product focused on transforming how law firms practice the business of law.

Testimonial from a team member: “Long story, but I worked there for maybe 6ish months part time a while back. They offered me full time, but I ended up going to a startup because I wanted to learn some specific technologies + up my skills in Data Science. That job was definitely good for some people, but it wasn’t as remote as they advertised it (had me fly in a lot), and the team was somewhat difficult to work with ;) I ended up starting my own consulting and at the same time CourtDrive reached back out to me (perfect timing). Point I was trying to make was that I went back to work with them because they were so nice to work with. Not super demanding and very open to listening to ideas/suggestions - just a pleasant environment.”

Full job listing and specific skills we are looking for: https://docs.google.com/document/d/16m4AOi_6vM8PlRFbS4CBbbph...

To apply, email: michael (at) courtdrive.com

E2B | SF (US) or Prague (CZ), both on-site | [Platform | Security | Distributed Systems | Sales] Engineer/DevRel Engineer | https://e2b.dev/careers

E2B is an open-source infra devtool that gives AI agents cloud computers that we call sandboxes.

We're Series A startup with 7+ figures revenue. We've raised over $32M and have customers like Perplexity, Hugging Face, Manus, X, MSFT, or Groq. We're growing double digits every month, have 5+ years of runway, and a full roadmap of exciting features to build.

I'd love to chat if you want to help us with some of the scaling challenges, DX, or new products!

Feel free to send me your projects to vasek[at]e2b.dev.

Mechanize Inc. | San Francisco, CA (Hybrid, ONSITE preferred) | Senior SWE ($500k+equity), Junior SWE ($250k+equity)

Apply at: https://jobs.ashbyhq.com/mechanize

Mechanize builds sophisticated reinforcement learning environments to simulate realistic software engineering tasks (feature development, debugging, refactoring, reliability testing) for frontier AI labs. Our mission is to automate software engineering first, then all economically valuable work. We're growing quickly, working with leading AI labs, and backed by investors like Nat Friedman, Daniel Gross, Patrick Collison, and Jeff Dean. Featured in NYT and TechCrunch.

Kimia (https://kimia.ai/join-us) | Chemical Intelligence | Remote (Aus)

Looking for a variety of roles including full stack engineers, AI engineers, and chemical engineers.

We already have some of the largest global distributors and suppliers using our platform.

Join us in building chemical intelligence!

SPREAD | https://www.spread.ai/ | Technical writer | Germany (Berlin, ideally) | Full-time

SPREAD builds B2B software for mechatronics customers like cars and defense systems. We help them design, build and diagnose problems with their systems faster. We do it with a combination of a well-designed ontology we've spent years working on as well as AI-based systems. Right now, we're looking for a technical writer to join our team that's really forward thinking to own the writing, tooling, and also lead the company in ambitious technical writing.

You can reach me at shane at spread . ai with your resume

Comulate | Senior Engineer (3+ YoE) | ONSITE in San Francisco, CA

We're building automation software for the $7T insurance industry, accelerated by AI. Seed stage in terms of headcount (~ 20 people) but Series B in terms of business traction (+ cash-flow positive). We've intentionally stayed under the radar.

- Product has caused customers to literally cry tears of joy

- Experienced eng team from Airbnb / Brex / LiveRamp

- Stack: TS, Postgres, React, GraphQL, and Next.js

Apply here: https://comulate.com/careers

TestDriver.ai | https://testdriver.ai | QA, Engineers, Customer Support | Austin / Remote | Full-time / Part Time 95% of companies are still wasting time manually testing due to shortcomings in Playwright, Cypress, and other frameworks. Developers rank testing as the #1 blocker to release. We've built an AI Agent that performs manual testing on it's own VM with complete desktop access. It works like a specialized "Claude Computer Use."

We're scaling our early sales and seeking QA engineers, customer support, and sales engineers.

Please DM ian [at] testdriver [dot] ai

Yuzu | https://yuzu.health | Engineers & Designers | Onsite in NYC | Full-time

At Yuzu, we’re building the next-generation health insurance company. We are NOT building a digital brokerage or an AI wrapper - we are going deeper to build the foundational infrastructure required to power tomorrow’s health plans.

We're hiring aggressively across the board, see open roles at https://yuzu.health/careers

thelab | Istanbul, Turkey | Senior Frontend Developer, Senior Backend Developer, Analytics Tag Management Specialist | http://thelabnyc.com | Full-Time | Hybrid (Mostly Remote)

We're hiring several roles in our Istanbul office. The Istanbul team works remotely, but we do have an office in Suadiye where the team meets up once a month or when in person collaboration is helpful. I oversee our Istanbul team, and they report directly into our Engineering or Analytics team based in the US.

We're headquartered in New York, with a smaller team in Istanbul focused on software engineering. Our focus is on design and development of custom e-commerce solutions for DTC orgs within enterprise companies, with additional emphasis on test-and-learn strategies that help us improve the customer experience and inform our technical roadmap.

To apply, please submit an application to the appropriate role in the links below.

Sr. Frontend Developer: https://thelabnyc.bamboohr.com/careers/203

– Strong experience with Sass. Experience with React component styling and/or building reusable styling frameworks. Experience with Typescript andcomfortable with building React components.

Senior Backend Developer: https://thelabnyc.bamboohr.com/careers/188

– Experience with Python for back-end web development. Django or similar libraries/frameworks. Interest in learning devops technologies like Gitlab CI, Docker, Kubernetes, Linux, ect. Modern Javascript for frontend development, Typescript, React+Redux

Tag Management Specialist: https://thelabnyc.bamboohr.com/careers/202

– Own the end-to-end design and governance of data collection and analytics infrastructure (e.g., GTM, GA4, Triple Whale, CDPs). Implement pixel and event tracking (client- and server-side) across platforms such as Meta, Google Ads, and Shopify, working closely with developers when necessary

Stellar (https://stellarcs.ai) | Founding Software Engineers | Amsterdam, the Netherlands | Full-time | No Visa Sponsorship

Stellar is building the go-to AI voice agent platform for customer support, enabling incredibly human-like customer service over the phone. We're a young and rapidly growing startup that has already proven traction, with a number of well-known companies among our initial customers.

To see some of our AI voice agents in action, see https://www.stellarcs.ai/demo-showcase

We're looking for founding software engineers to help us scale Stellar's platform globally. As one of the first members of our engineering team, you’ll play a key role in Stellar's journey and have the opportunity to help shape our architecture, engineering culture and product and engineering roadmap.

Tech stack: Go, Node.js, Typescript, React, Next.js, Encore Cloud, GCP

What you’ll do:

- Build performant APIs and backend services in Go and Typescript (Node.js)

- Develop Stellar's frontend in React, TypeScript and NextJS, to allow companies to effectively design, test, deploy and monitor their AI voice agents

- Design a scalable, fault-tolerant system architecture that can handle large volumes of concurrent real-time audio conversations & agent interactions while maintaining low latency

- Work on Stellar's AI agent framework, at the intersection of software engineering and AI engineering

- Design and implement a platform that meets enterprise standards in terms of security, compliance, resilience and data privacy

- Build API integrations with external systems to enhance the capabilities of Stellar's agents

- Help shape the early engineering culture as one of the first hires of a young and growing tech startup

Why join: you'll be joining at a pivotal time in our growth, in a role with a high degree of ownership and strong growth potential. Join a small but talented team, coming from high growth startups and scale-ups such Framer, MessageBird, Adyen and Crisp.

More details about the role here: https://www.stellarcs.ai/careers/software-engineer

Apply: Send us an email at info@stellarcs.ai, and mention you came from HN

OpusClip | https://www.opus.pro | Burnaby, BC (Vancouver) | ONSITE | Full-time

Roles: 1. Senior/Lead Growth Engineer, AI Video Agents 2. Data Scientist

OpusClip is the world's No.1 AI video agent, built for authenticity on social media.

We envision a world where everyone can authentically share their story through video, with no expertise needed. Within just 18 months of our launch, over 10 million creators and businesses have used OpusClip to enhance their social presence.

We have raised $50 million in total funding and are fortunate to have some of the most supportive investors, including SoftBank Vision Fund, DCM Ventures, Millennium New Horizons, Fellows Fund, AI Grant, Jason Lemkin (SaaStr), Samsung Next, GTMfund, Alumni Ventures, and many more.

Check out our latest coverage by Business Insider featuring our product and funding milestones, and our recognition as one of The Information's 50 Most Promising Startups in 2024.

Headquartered in Palo Alto, we are a team of 100 passionate and experienced AI enthusiasts and video experts, driven by our core values:

Be a Champion Team

Prioritize Ruthlessly

Ship fast, Quality Follows

Obsess over customers

Be a part of this exciting journey with us!

Please apply on: https://jobs.ashbyhq.com/opusclip/9fc3459f-d8eb-4a40-b01e-bf...

Beautiful.ai | Full-Time | Remote in US & CAN | SaaS B2B Presentation Software | Series B | 16M Funding | AI Industry

1. Senior Platform Engineer | 160k - 200k Base salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802989007

2. Senior Software Engineer | 160k - 200k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802854007

3. Software Engineer | 120k - 160k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802768007

4. Staff Platform Engineer | 200k - 250k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4803038007

5. Staff Software Engineer | 200k - 250k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4802916007

6. Performance Marketing Manager, Paid Social | 100k - 125k Base Salary + Equity | https://job-boards.greenhouse.io/beautifulai/jobs/4872181007

7. Art Director, Growth and Social - Part Time | $55-63/hr | https://job-boards.greenhouse.io/beautifulai/jobs/4922081007

8. Creative Project Manager - Part Time | $40-60/hr | https://job-boards.greenhouse.io/beautifulai/jobs/4916634007

Lightning AI | Software Engineer (multiple) | Hybrid | SF/NYC | Full-time |

About Lightning AI: Founded by the creators of Pytorch Lightning, Lightning AI is an end-to-end platform for machine learning and AI development.

We are expanding our engineering team and need product engineers, applied research engineers, and dev productivity engineers to join us as we reshape AI development for researchers and MLEs.

To apply: https://job-boards.greenhouse.io/lightningai

Fliki.ai (AI-powered video editor) Dubai, UAE / Bangalore, India | ONSITE | Full-Time

With recent advances in generative AI, we are reimagining the product around a simple idea: AI is the new UI. We're a team of only 5 and looking to carefully add a couple of full-stack engineers onboard.

What you'll be working on: https://fliki.ai/whats-new/sneak-peek-v4

Email: atul (at) fliki.ai

Rocket Alumni Solutions | https://rocketalumnisolutions.com | Frontend Engineer | REMOTE (Crossover with EST timezone) | Full-time | $90k - $180k USD DOE.

Rocket Alumni Solutions builds interactive recognition displays for schools, universities, and organizations. In 2025, we’ll surpass 1,400 touchscreen installations — profitable and scaling rapidly.

https://forms.gle/QUvemqavKaZsmSE8A

Lysk | Generalist Engineer (backend/frontend) | Warsaw, Poland / Paris, France | Onsite | Full-time

We are a young startup building modern software for European defence. Looking for generalists, especially with experience in: Web backend (FastAPI, Python), Audio processing (including Voice To Text models), Frontend (modern JS frameworks)

https://notion.lysk.ai/engineer

Email me: marek [@] lysk.ai

zoetro.pe | Technical Staff | San Francisco, CA | ONSITE/REMOTE | Full-time We're an applied lab building deterministic and deep generative experiences. Our team has built AI models, games, and infrastucture at Tesla Autopilot, Epic Games, Scale.ai, Repl.it, Bun, and Lucasarts.

You will be building procedural simulation models and the supporting infrastructure and applications. We're a small team, so this means everything from CUDA kernels and Pytorch notebooks to web-apps. Our stack is multi-lingual and spans from very low to very high level code. We use both our own models and external providers.

Our team is hybrid-remote, being primarily based in San Francisco.

Our stack: Python (Pytorch/jax), Typescript(React etc), Rust/C++, Ghidra

We're looking for exceptional research engineers who aren't afraid to get their hands dirty. Experience with computational geometry or compilers/language design/formal methods is a plus.

Formal qualifications are less important than passion and skill. We're building our dreams, we hope you will feel the same.

If interested, email me at: simon+hn@zoetro.pe

Ezra Climate | 2 roles: Principal Back-end Eng, Principal Full stack (front-end leaning) Eng | | Remote (US)

Ezra is building an AI diligence platform to help the finance world fund more climate projects (and other world-positive projects) faster. Well funded, founders have launched previous startups that have funded billions in climate solutions. Purposeful, small, kind and excellent team.

We're building a small team of Staff/principal-level engineers who love to build. Looking for 2 roles: someone to own the front-end, and a back-end engineer to work with our ML team and develop the backend for the web app.

Learn more here: https://www.ezra.fi/careers

Front (front.com) | Engineering Roles - Backend / Frontend / AI / Full-stack / Eng Manager | SF / Paris / Santiago / Argentina | Full-time

See roles here: https://jobs.ashbyhq.com/frontcareers?utm_source=mD314DBLx1

Airgoods | Platform Engineer, Design Engineer, Mobile Engineer | NYC | Full-time | $120k-$220k + equity

Airgoods is building the future of food and beverage distribution. Today, we help emerging brands (think Fishwife, Ghia, and David Protein) rapidly grow their wholesale business and earn placement into the nation’s best specialty food stores.

Apply here: https://jobs.ashbyhq.com/airgoods

Carriage Models | Backend/Platform Engineer | ONSITE (NYC) | Full-time | https://carriagemodels.com

Carriage Models automates financial due diligence across private equity, banking, real estate, debt, and hedge funds. We target complex financial modeling.

We're building enterprise AI systems:

-Heavy LLM usage and multi-agent agentic workflows

-Python backend (async, high-throughput processing)

-TypeScript frontend

Looking for backend/platform engineers who:

-Architect novel solutions to complex workflows utilizing LLMs and Python

-Think deeply about edge cases and can break down complexity into logical solution trees

-Are self-motivated and thrive on solving hard problems independently

-Know when to use LLMs vs. deterministic code

Small team, growing fast. In-person in NYC.

Apply: Send resume or GitHub + one sentence on why you → jobs@carriagemodels.com

Chef Robotics | Several Opportunities | Full-time | San Francisco, CA (in office)

At Chef Robotics, we’re on a mission to accelerate the advent of intelligent machines in the physical world. Our focus is food, a $300B+ labor market in the US alone, and we’re building AI-powered robots to help food companies scale and automate repetitive tasks. Backed by leading investors like Kleiner Perkins, Construct Capital, Bloomberg Beta, and Promus Ventures, we’re building a team of world-class engineers, roboticists, and business leaders to transform one of the world's largest industries.

Please find our openings here: https://jobs.lever.co/ChefRobotics

Seeq | https://seeq.com | Staff/Principal Software Engineer (Full stack) | REMOTE (Some crossover w/ PST required) | Full-time | $170k - $200k + equity. Salary range for US-based; local adjustments for other countries. Seeq creates cutting-edge data analytics software for industrial process data, serving sectors like pharmaceuticals, energy, and manufacturing. Our core product is a robust calculation engine capable of executing advanced math and machine learning algorithms on streaming time-series data. By leveraging generative AI, we enhance usability and accelerate outcomes for our users. We've built up a great remote culture (e.g. annual meetups, a remote office app we created to collaborate) and a dev team that enjoys tackling hard problems that make a difference for our customers (dev blog for more: https://geeq.seeq.com/).

Staff Frontend/Full stack Engineer (React, Typescript, Kotlin): https://apply.workable.com/seeq/j/D08DA1A63C/

Oils (https://oils.pub/) | Language Engineer / Debugger of Other People’s Cursed Shell Programs / Writer | REMOTE (non-US) | 50 euros/hour

Oils is our upgrade path from bash to a better language and runtime.

We’ve been awarded a 4th grant from https://nlnet.nl, and our focus is to show that OSH can be the ONLY shell on a Unix system, which is hard

It looks like we will reach this goal! Other than me, there are 4 people working PART TIME on this, and we can use more help.

If you like hunting down difficult bugs, and are skilled at Unix and Python, this could be a good fit.

Most bugs are too hard for 1 person to fix by themselves, so communication is important. And writing good test cases is important.

We’re also paying people to do polished writing, since we'd like to spread the word

Starting from 131, we’re down to 41 disagreements between OSH and sh/ash/bash, when building ~1600 packages in Alpine Linux

https://op.oils.pub/aports-build/published.html

Anyone who's not “scared” of these bugs is probably a good fit, and you can do as much or as little as you like. This is also an opportunity to get deeper into the interpreter

Communication happens on Zulip, and we also have video meetings approximately every 2 weeks

I'll have a blog post explaining this work soon, but feel free to e-mail me if this (unusual) job matches your interests. Any questions are very welcome, and you can dip your toes in to see if it works for you

I wrote this page a few years ago to help people assess the fit: https://github.com/oils-for-unix/oils/wiki/Where-Contributor...

The job is remote-only, and we slightly prefer non-US contributors due to our funding

Tech stack: Python, Shell, perhaps C++

Contact: andychup@gmail.com

GoGoGrandparent (YC S16) | FULLY REMOTE | Full-time | EST timezone | 1 x Tech Lead Engineer + 3 x Senior/Staff Backend/Full-stack/Frontend Engineers | $100k-$200k (partially location-dependent)

Build high-quality, robust engineering at the rarest of things - a Silicon Valley startup that is both wholesome AND profitable. We have 8-figure revenue, are YC-backed, and growing fast. Tech stack (required): Back-end (Node, Typescript, MySQL, REST* / GraphQL), Front-end (Vue.js), deploy (AWS, Docker/K8s) Minimum 5 years experience (with Node or Vue).

2-stage interview process.

If you want to help older adults and people with disabilities, send your LinkedIn/CV to william@gogograndparent.com (keep it brief) or apply at https://www.ycombinator.com/companies/gogograndparent/jobs

Goody | Remote | $200–250K + equity and benefits | Full-time

Goody is hiring a full-stack Staff Software Engineer who likes to ship at a startup pace and has an eye for exceptional UI/UX.

I'm Mark, the technical co-founder and CTO at Goody. Despite being something everyone does, gifting is one of the areas of commerce yet to be disrupted. Our goal is to make people's days by making gifting easy, while building a sustainable business on that market opportunity.

We're looking for engineers who like to build at a startup pace, have a critical eye for detail and user experience, and thrive when given autonomy and ownership.

Our product is used by Google, Stripe, Anthropic, Meta, NBCUniversal, Notion, and others, and we also offer a developer API for commerce.

Check out our jobs minisite at https://jobs.ongoody.com/swe and feel free to email me at mark@ongoody.com.

Improving South America | REMOTE (LATAM) | Full-Time,

- Node + TS + AWS Developer - SR.

- Database Engineer - SSR/SR.

- Fullstack Engineer: Python + TS + AI - SR.

- Data Engineer w/ Snowflake - SR.

- Node.js Developer - SR.

Apply here: getonbrd.com/companies/improving - or follow us on LinkedIn

Veridise | https://veridise.com | REMOTE | Full Time

About Veridise: Veridise performs security audits for smart contracts, zero-knowledge circuits, blockchain implementations, key management services, and other off-chain services like relayers, bridges, wallet integrations, and more. Additionally, many members of the Veridise team research and develop modern security tools designed to tackle the ever-changing landscape of blockchain development, providing novel and automated insights into the security of smart contracts and zero-knowledge circuits.

--------------------------------------------------------------------------------

Frontend engineer position: Veridise is seeking a skilled front-end software engineer who will be responsible for developing and maintaining a front-end for a SaaS platform that provides security and code review tools. This individual will work closely with backend engineers, static analysis tool engineers, and security analysts to implement features such as collaborative code review, vulnerability triage interfaces, and interactive visualizations of compiler data structures. In addition, this individual will be responsible for collecting feedback from customers to determine how interfaces can be improved to better integrate into their workflow.

Application link:

- https://veridise.com/careers/veridise-careers-frontend-engin...

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Security analyst position: Veridise is seeking a highly skilled and motivated security analyst. The ideal candidate will have a strong background in computer science, possess advanced technical expertise, and demonstrate a deep understanding of security principles. This role involves identifying and mitigating security vulnerabilities through manual code review, running cutting-edge security tools and analyzing their results, actively staying up-to-date on emerging security threats, and learning to audit in new and exciting technologies. Application link:

- https://veridise.com/careers/veridise-careers-lead-security-...

- https://veridise.com/careers/veridise-careers-security-analy...

Hiring an Okta expert and software engineer to lead identity management and employee/device lifecycle management for Opendoor: https://www.opendoor.com/careers/open-positions/jobs?gh_jid=...

Onsite in San Francisco

LaunchDarkly is hiring Remote Senior Product Security Engineer: https://grnh.se/xonwo33o3us

Digital Vitamins | Fully remote in Europe or Asia time-zones | Full-Time |

We're looking for someone help maintain and evolve a cross-platform Electron desktop app aimed at facilitating real time communications within enterprise environments. You’ll own desktop features, native modules, and real-time comms.

Must have:

- Strong Electron + Node.js (packaging, auto-update, native modules).

- Solid JS/TS and cross-OS debugging.

- Strong work ethic and comfortable working remote, asynchronous communication, and owning features end-to-end.

- Ability to hit the ground running and be able to deliver from day one.

Nice to have experience with:

- WebRTC, XMPP, and E2EE/encryption APIs experience.

You’ll:

- Maintain native modules and ship cross-platform releases.

- Implement/optimize real-time features and integrations.

- Improve security, performance, and test/CI coverage.

If you think you're a fit, send an email with your CV at "ilya.lopukhin _a_t_ 1rstwap.com" and we'll talk.

===

We're also looking for a senior Java developer to help maintain and evolve the Android. You’ll own Android features, native integrations, and shipping releases.

Must have:

- Strong Java + Android SDK experience (app architecture, lifecycle, background services).

- Practical WebRTC on Android experience.

- Experience shipping rock-solid Play Store builds.

- Some NDK/JNI experience (not very much needed though).

- Strong work ethic and comfortable working remote, asynchronous communication, and owning features end-to-end.

- Ability to hit the ground running and be able to deliver from day one.

Nice to have experience with:

- XMPP and E2EE/encryption APIs.

- Managing CI/CD for Android

You’ll:

- Maintain and extend the Android client, we have tons of new features planned for the foreseeable future.

- Implement/rescue complex features (call reliability, background push, low-latency reconnects).

- Optimize performance (startup, memory, battery, call quality) and fix device-specific issues.

If you think you're a fit, send an email with your CV to "ah _a_t_ digital-vitamins.at" and we'll talk.

Property Meld | Senior Software Engineer | Full-time | Remote (US & Canada) or Rapid City, SD

Looking for something more meaningful? How about the opportunity to have a direct impact on the property maintenance experience for hundreds of thousands of residents?

Welcome to the future of property maintenance. Property Meld’s vision is to radically improve how the property management industry handles property maintenance. If you’ve ever had a maintenance issue at your housing rental, you know how much of a pain it can be to get it fixed quickly and reliably. It doesn't have to be this way. We're rethinking the entire property maintenance experience from the ground up with two things in mind - first, driving the cost of doing maintenance to the absolute minimum, and second, providing an experience to residents and property owners that makes them want to stay with their property manager. If you are excited about turning something that has historically been a negative experience (maintenance) into a positive experience, we'd love to talk with you.

Stack: Python, Django, Typescript, React, React Native, PostgreSQL

https://property-meld.breezy.hr/p/2c9a513c0d8a-senior-softwa...

Apply through our career page or you can email us at `tech.jobs at propertymeld.com`

Clio | Remote Canada if outside of Toronto, Calgary, or Burnaby. Hybrid 2 days/week if local | Full-time and permanent with benefits from day one, paid by us, CAD salary bands posted on job descriptions

Clio is the market leader in legaltech products and we recently raised a Series F round of 1.4B CAD to a valuation of 4B CAD, marking the largest Canadian tech funding in history: https://betakit.com/clio-tops-4-billion-cad-valuation-with-l...

We also intend to acquire AI legal research tech company vLex (Vincent AI) to build a data moat: https://betakit.com/clio-to-acquire-american-legaltech-vlex-...

Some stats: 300MM+ ARR with 90% retention and 30% growth YoY / no debts / fortunate to have never done any layoffs. 1500+ staff before acquiring vLex, 500+ engineers, 55 eng teams.

---

Roles (all logistics and CAD salary bands posted on job postings):

+ Senior/Staff/Eng Manager, Databases (MySQL preferred but open to Postgres)

+ Software Developer, Mobile (React Native)

+ Staff Software Developer, Payments

+ Software Development Managers (30% hands-on coding, 4-6 direct reports)

+ Security Engineers (ELK, logging)

+ Intermediate/Senior Data Engineers (data platform and infra heavy, nearly no analytics work)

+ Senior ML Engineers (NLP, GenAI, agentic AI. Statistical inferencing and experimentation for building models from scratch, rather than integrating 3rd parties like ChatGPT)

+ Senior Software Developers (we use RoR but we are language agnostic during interviews, learn Rails on the job)

---

Message engineering.recruiting@clio.com and/or apply directly: https://www.clio.com/about/careers/engineering/

Neon Health | AI agents in healthcare | Hiring Eng, Growth, BizOps | SF (North America)

* Applied AI Systems Engineer | SF, Remote (North America) | Full-time | $120-180K + equity

* Senior Backend Engineer | SF, Remote (North America) | Full-time | $170-225K + equity

* Business Operations | SF | Full-time | $125-195K + equity

[neonhealth.com](http://neonhealth.com)

We’re mission-driven capitalists: making life-saving drugs more accessible, and building a $200B+ company—on the scale of Palantir or ServiceNow—serving the largest healthcare enterprises.

Traction: profitable and growing fast. Selling 7+ figure contracts to enterprise healthcare customers.

Team: built by exited founders, YC & MIT alum, ex-Tesla, ex-Google engineers.

Top investors: funded by elite Silicon Valley VCs who've backed unicorns like DoorDash, Lyft, and Mammoth Biosciences. And strategic healthcare investors with deep industry connections.

Outsized impact & opportunity: work at the intersection of agentic AI, healthcare transformation, and life-changing patient outcomes.

If you want to work on a team of A-player athletes, doing the best work of your career, and helping get life-saving drugs to the people who need them, apply here: https://neonhealth.com/careers#open-positions (and make sure to mention HN!)

Fundamental Research Labs | Machine Learning Engineers, Software Engineers, Ex-founders, Researchers | Menlo Park, CA | https://fundamentalresearchlabs.com

We're an applied research company building autonomous, collaborative, and socially intelligent agents. Our small team includes computational neuroscientists, AI researchers, engineers, and builders from MIT EECS, Stanford NLP Group, Google X, Citadel, and beyond.

Our latest product, tryshortcut.ai, just launched over the summer to amazing reception and we’re just getting started.

We…

...do everything from sophisticated Agent orchestration to SFT/RL post-training of foundation models.

...have an organizational structure where product leaders are given great autonomy to experiment and ship fast.

...compensate well above market and provide generous equity.

We’re looking for:

—> Machine Learning Engineers + Applied Research Engineers to bring our research to life.

—> Engineers and ex-founders to build Agent-first products.

—> Researchers to develop frontier technologies in the Agents domain.

https://jobs.ashbyhq.com/fundamentalresearchlabs

ARound (web-based augmented reality for sports) https://aroundar.com - a Stagwell company - https://www.stagwellglobal.com | Backend Engineer | Remote (Based in UTC -8/-7/-6/-5/-4 timezones only) | 20-40 hours a week TBD | Contract or contract-to-hire

Backend development in support of web-based augmented reality experiences and games for mobile devices. API integration and development. Management of cloud infrastructure and services.

Key technologies are Node.js, Rust, PostgreSQL, Digital Ocean. Experience with video streaming (RTMP, WebRTC). Some degree of familiarity with TypeScript, Vue.js, and Babylon.js is desirable.

Strong interest in sports is ideal (although fandom is optional).

I’m the hiring manager, no intermediaries. I’m not interested in hearing from outsourcing agencies or recruiters. Candidates only, please. Thank you. : )

raven@aroundar.com

exe.dev | Product Engineer | Hybrid ~2x/wk | SF | Full-Time

Building compute. $150k-$200k. Early stage decent equity.

Allied General | Northern Mexico | REMOTE (Mexico) with frequent travel or ONSITE | Full time

-

Can you handle projects that seem unsexy and uncool but are actually incredibly gratifying and great businesses? Read on. We’re building software to help small manufacturing firms ($10 - $20MM in revenue) build things with higher quality and speed. Help us help small firms compete against the big guys by delivering manufacturing more consistently and with higher quality.

Three pilot customers/design partners to start working with, on both sides of the border.

The company is not VC backed and probably won’t be for a long time. Good wages, lots of work. Good people. Not a lot of bullshit.

Us: Highly technical founding team with track record of success. Tiny tech team, large manufacturing team.

You: True full-stack. You enjoy shipping features, not code. You keep things simple. The role is “founding engineer”: you must be ok with a tiny team and working mostly by yourself.

Stack: Elixir.

Email me. sebastianv@gmail.com

Continua AI | https://continua.ai | Multiple Roles | ONSITE (NYC/Seattle) | Full-time | Salary + Equity

At Continua (http://continua.ai/), we're on our way to solving Social AI, and we're expanding our team! We've built an AI agent that users can invite into group conversations to make planning, coordination, and information retrieval effortless. We're social creatures and it just seemed to us a huge opportunity to bring AI into group settings. We've seen strong retention over the last few months and want you to help us bring our product to the next level. Try adding our agent at http://continua.ai/ to group chats and kick the tires!

I’m David (https://www.linkedin.com/in/dpetrou/), the founder and CEO. Before starting Continua, I was a Distinguished Software Engineer at Google. We’re backed by top-tier VCs and incredible angel investors. Our team is a fantastic bunch (http://continua.ai/team) of accomplished engineers and researchers from Google, Slack, Disney, and several AI startups. We're pretty clued in on the technology side and have a strong vision of how the transformative technology of the last few years along with our own secret sauce (not just a ChatGPT wrapper) can help a huge number of people.

We’re hiring a Senior/Staff Machine Learning Engineer, a full-stack engineer, a systems engineer, and a content creator: https://jobs.ashbyhq.com/continua/

For the ML role: you'll work on building and improving the best LLM group chat experience there is, including fine-tuning models to boost conversational quality and improve scalability and identifying novel ways to build a "memory" which leads to a personalized and unique experience for our users. You're an experienced machine learning engineer with broad knowledge and skills and have experience fine-tuning LLMs for both generative and discriminative use cases. You have a Master's or PhD in Machine Learning (or a Bachelor’s with exceptional industry experience). You understand what it means to work at a fast-moving startup.

Oh, and we maintain a vibrant blog, including items of technical interest, at http://blog.continua.ai/. Check it out! :)

David

Bubblehouse | Fully REMOTE | Full-Time | $200–250k | Principal Engineer

Bubblehouse is a fast-growing custom loyalty platform, tripling the revenue each year. Headquartered in NYC, the entire team is fully remote and spread across the globe. We power loyalty programs for brands like American Girl and Old Spice.

We’re expanding our lean team of extremely experienced developers. Companies are switching from other platforms thanks to the customizations and flexibility that we offer, enabled by our pace and technical excellence, which we intend to keep for years to come.

We run on Golang and use custom data storage on top of local key-value stores, colocating the storage and compute on dedicated hardware servers, and reading data directly from mmap’ed pages of the database. Ever came across HN saying that one can run Twitter on a single machine these days? We’re doing that in production.

Zero lines of React, almost zero third-party dependencies (carefully vetted), every line of JavaScript manually written with respect and understanding of the web platform. We render HTML server-side like it’s 2005.

Looking for:

1. Top to bottom understanding of the software stack, from the modern-ish web platform to CPU caches.

2. Thinking and problem solving outside the box. (We don’t _always_ go for unconventional solutions, but we do it often enough to require a person who can do justice considering the entire problem space at every step.)

3. Demonstrated ability and hunger to learn new things quickly. (Every month we’re doing things we have never done before.)

4. Broad experience across multiple programming paradigms, platforms and software stacks.

5. Demonstrated care for the software craftsmanship (which can take many forms).

6. Great spoken English, and ability to communicate 9am to noon in New York time zone.

We give you a literally fast-paced environment (with features delivered in days) where you need to solve very challenging problems with practical advanced technology, take on entrenched market leaders, and help entrepreneurs across small and large businesses delight their fans.

Send a plain text cover letter to andrey+hiring@bubblehouse.com. Help us see how you stand out. Summarize your experience. Link to 1–5 impressive things you’ve built and proud of, link to where we can see some of your code, include your portfolio/CV, describe the platforms and stacks you’re an expert in. How did you start programming? What are you most passionate about in technology? What are the most interesting or weird things you’ve done? What are your strongest held professional opinions? Please make your email easy to read, we’ll appreciate that.

(If you have applied before, no need to re-apply, we’ll reach out.)

Railway | Infra eng - Storage, Infra (Platform) eng, Product Eng (full stack)| REMOTE (Worldwide) | https://jobs.ashbyhq.com/Railway?utm_source=DayMzWzJ0P

Tired of trying to beat kube into shape? Does writing YAML to ship code fill you with utter dread? Dream of a future where deploying software is simple, and you don't need an army of infrastructure engineers to build that perfect janky bash script™ to make life easy?

We're Railway, and we think infrastructure can be better. So far we've built out a platform loved by hundreds of thousands of users who simply tell us "Give me Postgres", "Deploy this repo", and we make it happen

Fair warning! The problems are complex: home-rolled hypervisors, cut-above container orchestration, over/under/whateverlay networks, virtio device drivers, edge proxies, IAM that doesn't suck, kitchen sinks - we need to build it and we're looking for likeminded individuals who think this stuff is fun.

Three open roles (apply below!):

+Infra Engineer - Storage: Apply here: (https://jobs.ashbyhq.com/Railway/25d8444a-47dc-4084-ae56-29a...) Blog post about the team: (https://blog.railway.com/p/data-center-build-part-one)

+Infrastructure Engineer(Platform): -Apply here:(https://jobs.ashbyhq.com/Railway/b8072f95-043f-404d-a313-f0b...) -Blog post about the team: (https://blog.railway.app/p/team-spotlight-infrastructure-eng...)

+Product Engineer (full-stack): -Apply here: (https://jobs.ashbyhq.com/Railway/6ddcfe47-6cce-469b-ba6d-4f0...) -Blog post about the team: (https://blog.railway.app/p/team-spotlight-product-engineerin...)

See you soon, and happy shipping.

Smarkets (https://www.smarkets.com) | Full Time | Hybrid - Onsite (London, UK), Remote - Indiana, US and Sweden

Smarkets is a betting exchange for sports and political trading that has handled over £37 billion in volume since 2010. Our company mission is to fix the betting industry with the best products and best prices.

We are currently looking for:

Senior Software Engineer - Backend, Distributed Systems, Rust, London, UK - https://smarkets.com/job/41fba25f-0896-46d5-a093-8ebbc9e1624...

Software Engineer - Backend, Python, Rust, London, UK - https://smarkets.com/job/aaaf901f-77c0-4b35-9240-ed4cfa668ba...

Senior Quantitative Developer, London, UK - https://smarkets.com/job/5502cdbe-6246-47ec-890b-2f2817e3cf1...

Dev Ops Engineer - London, UK - https://smarkets.com/job/99823479-fd3a-4720-8090-455394fb63f...

Senior Cloud Infrastructure Engineer - London, UK - https://smarkets.com/job/7ee3a731-acc0-448f-bc61-64429e2ebf9...

QA Analyst - Contractor, Sweden - https://smarkets.com/job/52aad884-0aab-477e-a99c-8a76f38f42a...

QA Analyst - Contractor, Indiana, US - https://smarkets.com/job/494945c5-a687-4ffd-b117-d2f7a1074a8...

Data Engineer - London, UK - https://smarkets.com/job/3499be76-c66b-49eb-b6b8-c2d24fee622...

Founder's R&D Engineer - London, UK - https://smarkets.com/job/a42cba2e-e0e7-42e7-b156-3e56b485435...

Temporal Technologies | Multiple positions in United States - WORK FROM HOME | FULL-TIME |

Temporal offers an entirely new way to build scalable and reliable applications. Temporal enables developers to focus on writing important business logic, and not on managing state or worrying about the underlying infrastructure. Sequoia Capital led our last round of funding and our team has experience from start-ups and larger companies like Microsoft, Google, Amazon, Uber, and more.

Temporal’s Series C Funding Announcement: https://temporal.io/blog/temporal-series-c-announcement

Temporal in 7 minutes: https://temporal.io/tldr

We're looking for senior level engineers for multiple roles - see here - https://www.temporal.io/careers

FEATURED ROLES:

Staff Software Engineer, Traffic → https://grnh.se/1cbb896d7us

Staff Software Engineer, Cloud Infrastructure → https://grnh.se/8b0ba8347us

Staff Software Engineer - Cloud Capacity → https://grnh.se/a0hc6o6h7us

Senior Product Manager, SDK & Developer Primitives → https://grnh.se/2e82af137us

Staff Cloud Security Engineer → https://grnh.se/nn0axiu57us

US benefits include: Unlimited PTO, 12 Holidays + 2 Floating Holidays, 100% Premiums Coverage for Medical, Dental, and Vision, AD&D, LT & ST Disability and Life Insurance , Empower 401K Plan, Additional Perks for Learning & Development, Lifestyle Spending, In-Home Office Setup, Professional Memberships, WFH Meals, Internet Stipend and more! Benefits outside the United States vary by country.

Apply here https://www.temporal.io/careers/

krea.ai | Distributed Systems Eng. & Data Engineers | San Francisco (on-site), CA

I'm the cofounder & CTO of Krea (https://www.krea.ai). We are a startup in San Francisco building browser-based AI creative tools to improve the workflows of artists, designers, and professional creatives. Small team (~22); millions of active users; and raised over $83M from top Silicon Valley investment firms.

We're looking for talented engineers who want to tackle hard technical challenges with smart people while building a creative platform that big companies and startups will rely on.

The job:

- Build distributed systems to process massive (billions of files, petabytes), amounts of image, video, and 3D data, solving scaling bottlenecks as you go.

- Learn ML engineering from world-class researchers on a small tight-knit team. You’ll contribute to foundation image, video, and world models from 0 → production, and see them used by millions.

- Play with huge Kubernetes GPU clusters; our main GPU cluster takes up an entire datacenter from our provider.

Tech stack: python, pytorch, k8s, a rotating cast of data tools (e.g. DuckDB, massive relational DBs, PyArrow, etc.)

You should apply if you are an excellent generalist engineer with strong backend experience and an intuition for systems design. Bonus points for experience with dist. systems, k8s, and existing ML or data experience (but not required!). Cool side projects are a green flag.

A few links about us:

- Sneak peek of our real-time video model → https://x.com/krea_ai/status/1961074072487620635

- Technical report for FLUX.1 Krea, our first open-source text-to-image model → https://krea.ai/blog/flux-krea-open-source-release

You can contact me at:

  d+hn@krea.ai

Aloe | Vancouver BC Canada | ONSITE

To the Best Talent in the World: an Invitation Come join a state-of-the-art team tackling the most important problems in AI – in a society that actually wants you to be here.

https://aloe.inc/blog/the-best-talent-in-the-world

I am a co-founder. Looking forward to doing the best work of our lives together!

Epic Kids | Data Engineer | Full-Time | REMOTE | San Jose | $120k-225k

As a Data Engineer at Epic Kids, you will work closely with our development team, infrastructure team, and data team to design, build, and optimize data pipelines, ensuring data quality and security, while also collaborating with other teams to deliver effective data solutions.

Key Responsibilities:

    Develop robust ETL/ELT pipelines to extract, transform, and load data from diverse sources into our data warehouse.
    Enhance and maintain our cloud-based data storage and processing systems for performance, reliability, and cost-efficiency.
    Implement rigorous data quality checks, monitoring, and security measures across all data assets.
    Proactive in identifying and addressing data inconsistencies and bottlenecks, continuously refining data infrastructure for robust and high-performing data solutions.
    Partners with data analysts and non-technical teams to understand data requirements and shape the development of effective data products.

    5+ years of experience in data engineering, with a strong grasp of data warehousing, ETL/ELT principles, and data modeling.
    Experience with data storage solutions (e.g. relational, data lakes), cloud data platforms (e.g. GCP, AWS) and cloud-native data technologies (e.g. BigQuery, Snowflake).
    Experience with workflow orchestration tools (e.g. Airflow)
    Experience with infrastructure tools (e.g. Terraform, Kubernetes, Docker) is a plus.

If you are a good SWE with bigquery + gcp experience that works too!

Please post your resume here: https://job-boards.greenhouse.io/epickids/jobs/6669024003

ResiQuantAI | San Francisco, CA | US Based | Resiquant.ai | Onsite, Fulltime

ResiQuant is a mission-driven startup building the future of property risk intelligence—where every building can be accurately assessed for disaster resilience, at scale. We’re solving one of the toughest problems in climate risk: the lack of reliable, standardized, and dynamic data on the built environment. Our work is critical in a world where wildfires, earthquakes, and hurricanes are escalating in frequency and impact. Empowering insurers, financial institutions, and asset managers, our AI-powered systems combine cutting-edge machine learning with deep structural engineering expertise. The result: precise, actionable insights that close critical data gaps and drive smarter decisions.

Backend Product Engineer: -Architect and maintain backend systems that support AI-driven property risk intelligence at enterprise scale - Own end-to-end development of backend features, from design through deployment - Design and implement scalable APIs, data pipelines, and model-integrated services to deliver real-time, high-reliability insights used by Fortune 500 insurers - Collaborate cross-functionally with engineering, product, and customer stakeholders to build and iterate on impactful features - Ensure backend systems are observable, reliable, performant, and ready for production at scale - Evaluate user and customer feedback to inform product iterations and backend improvements - Minimum of 3 years of backend engineering experience with ownership of production systems - Hands-on experience developing in modern backend stacks (Python experience is a plus) - BS or above in Computer Science/Engineering and at least three years of applicable industry experience

Forward Deployed Engineer: Act as the technical liaison between the company and enterprise insurance customers, leading engagements from initial discovery through full-scale implementation - Collaborate directly with underwriters, executives, and IT teams to deliver AI-driven solutions that transform risk assessment for wildfire, earthquake, and hurricane exposure - Architect and implement custom APIs, integrations, and automations that connect customer systems with ResiQuant’s platform - Travel to customer sites across the U.S. to conduct workshops, lead technical deployments, and ensure successful adoption of the platform - Train and onboard underwriter teams, supporting workflow integration and long-term platform usage - Serve as the voice of the customer, translating needs and feedback into product roadmap priorities - Develop internal tools and automations to streamline future implementations and scale delivery - Minimum of 3 years of software engineering or technical implementation experience, with strong communication and customer-facing skills - Hands-on development experience, particularly with APIs and systems integration (Python proficiency is a plus) - BS or above in Computer Science/Engineering and at least three years of relevant industry experience

Please send your resume to: jordan@resiquant.ai