Security Engineer (Senior / Staff)

Meta's Central Security team is hiring Security Engineers at two levels (same team, same work): - Senior (IC5): https://www.metacareers.com/profile/job_details/140745796424... (https://www.metacareers.com/profile/job_details/1407457964247914/?env=prod) - Staff (IC6): https://www.metacareers.com/profile/job_details/548694391486... (https://www.metacareers.com/profile/job_details/5486943914865119/?env=prod) We find weaknesses before attackers do, then build the solutions that eliminate them. You'll be the expert engineering and product teams turn to for AI security and native-code security guidance, providing security guidance on a constant stream of new products, leading internal security/privacy initiatives, assessing and responding to internet threats, and conducting security assessments specializing in mobile platform and application code. The work protects 3B+ people. Looking for: B.S./M.S. in CS or equivalent experience; 6+ years (IC5) / 8+ years (IC6) in security engineering (vuln research, pentesting, or assessments of production systems); 4+ years reviewing C/C++ with secure coding practices; programming in Python/C++ or similar; security architecture and least-privilege experience on internet-facing products. Nice to have: iOS/Android security model, VM escapes, exploitation / reverse engineering / CTF, static analysis and fuzzing, Rust / Obj-C / Java/Kotlin, community contributions (research, talks, bug bounty), and experience using AI tools to improve security workflows.