You build the applications customers actually use. Full-stack, at a pace that isn't normal. You're equally good debugging an agent loop at 2am and demoing the feature to an ops lead the next morning.

What you own. AI-native applications end-to-end - React + TypeScript on top, Python + FastAPI + Postgres underneath, LLM orchestration in the middle. Prototype → production → iteration. Evals, observability, and the unsexy plumbing that keeps the whole thing running. Direct customer contact when it's the fastest way to build the right thing.

What you bring. Production experience across React/TypeScript, Python, and at least one LLM API in a real application. Strong opinions about RAG, agents, and evals, formed by shipping. You translate between a stakeholder's problem and the system that solves it without needing a PM in the middle.

Level. Experienced engineers own feature areas end-to-end. Early-career ramps fast on live customer systems.