Product Security Engineer

Meta's Security Engineering team is looking for a Security Engineer to help protect the billions of people who use Meta's family of products and services. In this role, you will identify and mitigate security vulnerabilities across Meta's infrastructure, applications, and platforms, working closely with engineering and product teams to drive systemic security improvements at scale. You will apply deep technical expertise in offensive and defensive security to reduce risk and build resilient systems that safeguard user data and platform integrity.

Conduct security assessments, threat modeling, and code reviews across Meta's products and infrastructure to identify and remediate vulnerabilities Develop and implement scalable security tooling, automation, and frameworks to detect and prevent security issues across the engineering organization Partner with engineering and product teams to embed security requirements into the design and development lifecycle Investigate security incidents and drive root cause analysis, translating findings into systemic mitigations and process improvements Identify gaps in security coverage and drive cross-functional efforts to close them through tooling, policy, or architectural changes Turn one-off vulnerability findings into repeatable detection and remediation patterns that scale across the codebase Represent the security team in cross-functional collaborations, communicating risk posture and mitigation strategies to engineering leadership Mentor other engineers on secure coding practices, vulnerability classes, and security review methodologies Manage and independently resolve security incidents, coordinating with cross-functional partners to drive timely remediation