London, UK (Hybrid, 3 days/week)

We're building coding agent systems for large-scale industrial projects, and an agentic cloud. Why join: - Small, senior team: ex-DeepMind, OpenAI, Microsoft Research, Amazon, and Cambridge University, multiple PhDs - Hard problems across distributed systems, OS/sandboxing, ML and LLM inference/post‑training. Real users; ship to prod. - Big Tech salary + options. Open roles (all Senior/Staff; hands-on): - Full-Stack - design and build new coding agent experiences, working with a top designer - Agent Infrastructure - branching sandboxes, filesystems, orchestration, observability - Backend / Eng Lead - build cloud from first principles; distribution, sync, load-balancing, events - LLM inference & post-training - long context tech, RLVR, vLLM, performance - Devrel & GTM – live-developing, tutorials, OSS/community, hackathons - drive adoption You might be a fit if: - 5+ years building and operating production systems (or exceptional evidence). - Own 0→1 projects; comfortable reading & generating lots of code. - Public work (OSS/papers/blogs/products) or strong portfolio. Do apply! https://www.igent.ai/join-us (https://www.igent.ai/join-us)