Security Engineer (Senior / Staff)

Devconnectplatform; Bellevue, Menlo Park, New York, Washington (WA, CA, NY, District of Columbia); Hybrid; USD 140,000 - 210,000; Full time

Job summary

Meta's Central Security team seeks Senior/Staff Security Engineers for remote US roles with onsite Bellevue options. You will advise engineering and product teams on AI and native-code security, driving security initiatives and product security across a stream of new offerings.

Role requires 6+ years (IC5) or 8+ years (IC6) in security engineering, 4+ years in C/C++ review, and strong Python/C++ programming. Mobile security, reverse engineering, and least-privilege design are valued.

Qualifications

• 6+ years in security engineering (IC5) or 8+ years for Staff (IC6).
• 4+ years reviewing C/C++ with secure coding practices.
• Programming in Python/C++ or similar; security architecture and least-privilege on internet-facing products.

Responsibilities

• Provide security guidance to engineering and product teams for new products.
• Lead internal security/privacy initiatives and assessments.
• Assess and respond to internet threats; conduct mobile platform and app code security assessments.

Skills

Security engineering

Vuln research

Penetration testing

Secure coding

Python

Security architecture

Least privilege

CTF / reverse engineering

Education

B.S./M.S. in CS or equivalent experience

Tools

Static analysis tools

AI tools

Job description

# Security Engineer (Senior / Staff)MetaSalary not statedFull-timeremote· leadUSpythoniosandroidrustjavakotlinListed via Hacker News · posted 2 Nov 2026. The application happens there, not on DevConnect.Apply on the company site## DescriptionMeta | Security Engineer (Senior / Staff) | ONSITE Bellevue, Menlo Park, New York, Washington DC — Staff role also REMOTE (US) | Full-timeMeta'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...- Staff (IC6): https://www.metacareers.com/profile/job\\_details/548694391486... 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.