Security Engineer: Build Scalable Defenses for Global Apps

Company: Meta
Apply for the Security Engineer: Build Scalable Defenses for Global Apps
Location: City of Westminster
Job Description:

Meta is seeking a Security Engineer to protect billions of users and Meta’s global infrastructure. You will perform security assessments, threat modeling, and vulnerability research across mobile, web, backend, and internal systems.

Your work spans identifying systemic gaps, driving scalable mitigations, and embedding security into the software development lifecycle. You will lead investigations, develop tooling, and mentor peers while collaborating with product and infra teams to enforce robust

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Posted: September 28th, 2026