What I’m seeing is that seniors need fewer juniors, not because seniors are being replaced, but because managers believe they can get the same output with fewer people. Agentic coding tools reinforce that belief by offloading the most time-consuming but low-complexity work. Tests, boilerplate, CRUD, glue code, migrations, and similar tasks. Work that isn’t conceptually hard, just expensive in hours.

So yes, the market shifts, but mostly at the junior end. Fewer entry-level hires, higher expectations for those who are hired, and more leverage given to experienced developers who can supervise, correct, and integrate what these tools produce.

What these systems cannot replace is senior judgment. You still need humans to make strategic decisions about architecture, business alignment, go or no-go calls, long-term maintenance costs, risk assessment, and deciding what not to build. That is not a coding problem. It is a systems, organizational, and economic problem.

Agentic coding is good at execution within a frame. Seniors are valuable because they define the frame, understand the implications, and are accountable for the outcome. Until these systems can reason about incentives, constraints, and second-order effects across technical and business domains, they are not replacing seniors. They are amplifying them.

The real change is not “AI replaces developers.” It is that the bar for being useful as a developer keeps moving up.