Principal Infrastructure Engineer — AI Integrity at Scale

Meta is seeking a principal engineer for the Central Integrity team to help scale safety systems across billions of users. You will architect large-scale infrastructure, guide multi-year roadmaps, and mentor senior stakeholders across the organization. The role emphasizes responsible AI practices and cross-functional collaboration to deliver real-world impact. The position requires deep expertise in systems design, AI tooling, and building scalable platforms, with a strong track record of