Senior Backend Engineer: Real-Time, Secure Platform

Outerlimit Group Ltd. in London (King's Cross) and New York City seeks a Senior Backend Engineer to design and build core platform capabilities for real-time control, security, and observability in agentic systems.

You will create high-performance backend services in critical execution paths and contribute to system design and security. You will own features end-to-end, mentor peers, and push for low-latency, reliable solutions while collaborating with frontend, ML, DevOps and platform teams to