Founding Engineer
Build the runtime every agent runs on, from sessions and sandboxes to the tools agents use to get real work done.
- Team
- Engineering
- Location
- San Francisco
- Type
- Full-time
About the role
You will work directly with the founders and a small team, with agents alongside you for the legwork. What you ship reaches customers the same week.
What you will do
- Ship features end to end, from the database schema to the pixels, usually inside a week.
- Work alongside agents every day: they draft, test, and review with you, and you make them better.
- Measure what you build in production and fix the root cause, not the symptom.
- Write the specs, tests, and docs that let the next person (or agent) move fast.
What we are looking for
- You have shipped real products and owned them after launch.
- You are fluent in TypeScript or Rust, or in another language and keen to learn them quickly.
- You care about speed, correctness, and the small details users notice.
- You explain your thinking clearly in writing.
Nice to have
- Experience with Effect, React, Postgres, or Kubernetes.
- You have built developer tools or worked on agents and LLMs.
