The opportunity
Secure Frameworks is the team in Anthropic's Security Engineering org that builds shared security libraries and frameworks the rest of the company builds on. We collaborate closely with teams and leaders across Anthropic to own critical security foundations, including workload…
What you'll do
Build critical security foundations including cryptographic frameworks, mTLS: infrastructure, secure serialization, and authorization systems, designed to prevent entire classes of vulnerabilities
Partner with product, research, infrastructure, and other security teams to: ensure frameworks integrate smoothly with lower-layer security controls
Scope, design and build security services and libraries end-to-end, maintain: them in production, and drive through ambiguous technical problems with minimal oversight
Build and operate the zero-trust access gateway that fronts Anthropic's internal services
Design and roll out authorization frameworks so services enforce least: privilege consistently instead of each inventing its own access controls
Own cryptographic frameworks and libraries
What they're looking for
- Built security frameworks or libraries adopted across an engineering: organization, and done the work to drive that adoption
- Built or operated a zero-trust / BeyondCorp-style access gateway or identity-aware proxy
- Migrated a fleet to mTLS at scale, including certificate issuance and staged enforcement
- Maintained or contributed to open-source cryptographic libraries
- Designed authorization systems using policy languages or relationship-based models
- Familiarity with ML infrastructure (training, inference serving)
