Rust Backend Engineer — Build AI Safety at Scale

White Circle, an AI Safety company, is seeking a Product Engineer (Backend – Rust) to own core systems powering AI safety at scale. You will build APIs handling hundreds of millions of requests, implement real-time policy enforcement, and develop high-throughput data pipelines.

You will design and ship backend services in Rust, own features end-to-end, and collaborate with product and research to translate requirements into production systems. Hybrid Paris-based role with relocation package.