Security Engineer: Build Scalable Defenses, Threat Modeling

Company: Meta
Apply for the Security Engineer: Build Scalable Defenses, Threat Modeling
Location: London
Job Description:

Meta’s Security Engineering team is seeking a Security Engineer to help protect billions of users and Meta’s global infrastructure. You will conduct security assessments, vulnerability research, and threat modeling across Meta’s products and systems—spanning mobile applications, web platforms, backend services, and internal infrastructure.

You will identify systemic security gaps, drive mitigations at scale, and partner with engineering teams to embed security best practices into the software

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Posted: September 29th, 2026