Staff + Software Security Engineer, Secure Frameworks

Highlights

• Design and run security foundations used across Anthropic's fleet end to end.
• Operate the zero-trust access gateway fronting Anthropic's internal services.
• Make secure defaults easy to prevent entire classes of vulnerabilities by design.

What they offer

• competitive compensation and benefits
• optional equity donation matching
• generous vacation and parental leave
• flexible working hours
• lovely office space to collaborate with colleagues

Ideal candidate

Experienced security engineer who thrives in ambiguous greenfield work and brings clarity and ownership across teams. Cares deeply about developer experience, mentoring, and building trustworthy AI through secure-by-default foundations.

Requirements

• 8+ years building security-relevant systems in production, leading complex initiatives independently
• Strong programming skills in Go, Rust or Python
• Deep understanding of authentication and authorization including OAuth 2.0 / OIDC, JWTs and policy-based access control
• Hands-on experience with PKI, X.509, mTLS and workload identity
• Working knowledge of applied cryptography, key management and library failure modes
• Experience shipping and operating high-reliability services on Kubernetes including on-call
• Track record of bringing clarity and ownership to ambiguous problems across teams