Own and scale the whole stack (React/React Native, Python/Django, GraphQL, Postgres, AWS), ship new AI-native features, chase latency spikes, and grow the team from 1 → 5+. You're a commercial thinker who speaks unit economics, retention levers, and gross margin as fluently as REST endpoints; resourceful, data-driven, ops-literate, and never stops tinkering with the latest models.