We're looking for a senior backend engineer to help build the runtime that executes millions of agent runs every day. You'll work on scheduling, tool execution, streaming and the reliability guarantees our customers depend on.
What you'll do
- Design and build services that run agents safely at scale.
- Own critical systems end-to-end, from design doc to on-call.
- Improve latency, cost and reliability with measurable results.
- Mentor engineers and raise the bar in code review.
What we're looking for
- 6+ years building production backend systems.
- Deep experience with Go, Rust or Python and distributed systems.
- Comfort with Postgres, queues and observability tooling.
- Clear written communication — we're remote-first.
Nice to have
- Experience with LLM APIs or ML infrastructure.
- Open-source contributions you're proud of.
Our process
Intro call (30 min) → technical conversation (60 min) → take-home or pairing, your choice (3 h max, paid) → meet the team. We reply to every application within 5 working days.