Backend Rust Engineer for AI Policy & Scalable Systems

White Circle, an AI Safety company, is hiring a Product Engineer, Backend (Rust) to design and build high-scale Rust services that perform real-time policy checks. You will own features end-to-end, including API design, data schemas, deployment, and monitoring.

You will collaborate with product and research to improve performance, reliability, and observability, using connection pooling, caching, and query optimization. Relocation to Paris or London is required, with hybrid work.