Product Engineer (Backend)

White Circle, an AI safety company, is seeking a Product Engineer (Backend – Rust) to own and evolve core systems powering AI policy enforcement at scale. The role involves designing and building high-performance Rust services that handle real-time checks, collaborating directly with product and research teams, and taking full ownership from API design through deployment. Engineers will work within a small, focused team to solve hard problems and impact how AI safety is actually built.