Location: Lublin, Poland (CET)

Remote: Yes, remote only. EU citizen, 13 years working with US-based teams

Willing to relocate: No

Technologies: hands-on TypeScript, JavaScript, Vue/Nuxt, Node.js, PHP/Symfony, PostgreSQL, GraphQL. React/Next.js, Python and Kotlin through AI coding agents (Claude Code, Codex), checked with tests, review agents and evals.

Résumé/CV: https://drive.google.com/file/d/1LWB8xrTNbiNq5db7_WhStPE1RAb...

Email: jury.bialoglazow+hn@gmail.com

Senior software engineer, almost 20 years in the industry, 13 of them at Upwork (NASDAQ: UPWK): the reports where freelancers and clients see their hours and money, the time-tracking record behind hourly contracts, and paid-plan growth with A/B tests. Four live stack migrations: Zend → Symfony, jQuery → AngularJS → Vue 2/Nuxt → Vue 3.

DiaPilot is an open-source glucose forecasting app I built for my own type 1 diabetes and use every day. Coding agents wrote most of the code; I directed the product, the physiological model and the verification: adversarial review agents, replay studies on held-out days, mutation-tested suites. https://github.com/obdosok/diapilot-app

Looking for: hands-on senior software / product / full-stack roles in product-focused, AI-native teams. Digital health, diabetes tech and device/sensor data are a special interest. Full-time or long contract.