Staff Platform Engineer, Auth & Identity

Alex Loftus; New York (NY); On-site; USD 405,000 - 485,000; Full time

Benefits offered by this job

Competitive compensation

Equity donation matching

Generous vacation & parental leave

Flexible working hours

Job summary

Anthropic is seeking a Staff+ Software Engineer for the Auth & Identity team in New York. You will own critical authentication and authorization systems, shaping policy, and building scalable identity primitives for humans, services, and agents.

Strong candidates bring 8+ years in backend/platform work, experience with OAuth/OIDC, SAML, SCIM, JWTs, and enterprise identity integrations, and comfort with Go, Python, Rust, or TypeScript.

Qualifications

• 8+ years of experience building and operating backend or platform systems at scale, with identity/auth or security-adjacent infrastructure.
• Experience with OAuth 2.0 and OIDC, SAML, SCIM, JWTs and token exchange, workload identity federation, policy engines like Cedar or OPA, or RBAC access models.
• Reliability and security mindset, on-call readiness, failover planning, and clear ownership of storage and auth systems.

Responsibilities

• Own critical, high-traffic systems end to end from design to rollout and operations.
• Set technical direction for identity and access across Anthropic’s platform.
• Design credentials for agents and long-running workloads and unify access decisions.
• Lead migrations in live, high-traffic environments with shadow modes and incremental rollouts.
• Provide clear documentation and self-service primitives for other engineers.

Skills

Backend systems

Identity/auth

OAuth/OIDC

RBAC

Education

Bachelor's degree

Tools

Go

Python

Rust

TypeScript

Job description

Anthropic is seeking a Staff+ Software Engineer for the Auth & Identity team in New York. You will own critical authentication and authorization systems, shaping policy, and building scalable identity primitives for humans, services, and agents.

Strong candidates bring 8+ years in backend/platform work, experience with OAuth/OIDC, SAML, SCIM, JWTs, and enterprise identity integrations, and comfort with Go, Python, Rust, or TypeScript.