Staff Security Engineer: Secure Frameworks (Flexible Hours)

Anthropic; New York (NY); On-site; USD 32,000 - 485,000; Full time

Job summary

Anthropic's Secure Frameworks team designs, builds, and runs security foundations used across Anthropic's fleet, from threat modeling to production and on-call support. Your work will define architecture, with focus on cryptographic frameworks, mTLS, and scalable authorization systems.

You will mentor engineers and help grow security culture across the company. The role involves partnering with product, research, infrastructure, and other security teams to deliver production-ready security

Qualifications

• 8+ years of software engineering experience building security-relevant systems in production.
• Strong programming skills in Go, Rust or Python.
• Deep understanding of authentication and authorization systems: OAuth 2.0 / OIDC, JWTs, service-to-service auth, policy-based access control.
• Hands-on experience with PKI, X.509, mTLS and workload identity.
• Working knowledge of applied cryptography: choosing and composing primitives correctly, key management, and the ways libraries fail in practice.
• Experience shipping and operating high-reliability services on Kubernetes across cloud and on-prem environments.
• A track record of bringing clarity and ownership to ambiguous technical problems and driving them to resolution across teams.
• A strong sense of developer experience.
• Clear communication across all levels of the organization.
• Passion for AI safety and the role security engineering plays in building trustworthy AI systems.

Responsibilities

• 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.
• Mentor engineers, contribute to hiring, and grow security engineering culture across Anthropic.

Skills

years of experience

Go

Rust

Python

authentication

authorization

PKI

X.509

mTLS

Kubernetes

problem solving

developer experience

communication

AI safety

Education

Bachelor's degree

Tools

Kubernetes

Job description

Anthropic's Secure Frameworks team designs, builds, and runs security foundations used across Anthropic's fleet, from threat modeling to production and on-call support. Your work will define architecture, with focus on cryptographic frameworks, mTLS, and scalable authorization systems.

You will mentor engineers and help grow security culture across the company. The role involves partnering with product, research, infrastructure, and other security teams to deliver production-ready security