# Staff+ Software Engineer, Auth & Identity at Anthropic

- Company: Anthropic
- What the company does: Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems. Backed by Accel, Bessemer and General Catalyst.
- Company website: https://www.anthropic.com/
- Type: Startups (AI role)
- Level: Senior
- Location: San Francisco, CA | New York City, NY
- Work setup: On-site
- Posted: 2026-08-21
- Apply by: 2026-10-19
- Apply: https://job-boards.greenhouse.io/anthropic/jobs/5398227008?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/anthropic-staff-software-engineer-auth-and-identity/

## About the role

The Auth & Identity team builds the authentication, authorization, and identity platform that underpins every Anthropic product: the API, Claude Code, Claude.ai, and our Enterprise offerings. Every login, API key, OAuth token, access decision, and organization record flows through the systems we own. As Claude moves from a chat product to an agentic platform, we are defining what identity and access look like when the actor is a human, a service account, or an autonomous agent acting on someone's behalf. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Have 8+ years of experience building and operating backend or platform systems at scale, ideally including identity, authentication, authorization, or security-adjacent infrastructure
- Have worked with some of: OAuth 2.0 and OIDC, SAML, SCIM, JWTs and token exchange, workload identity federation, policy engines such as Cedar or OPA, or RBAC and resource-level access control models
- Care deeply about reliability and security. You design for on-call, failure modes, revocation, and the engineer who inherits your system, and you treat availability of auth as table stakes for every product built on it
- Are comfortable owning large migrations in live, high-traffic systems: shadow modes, incremental rollouts, and clean retirement of legacy paths
- Take a product-focused approach to platform work and build primitives that are easy for other engineers to adopt correctly, with documentation and self-service as part of the deliverable
- Can navigate ambiguity and make sound technical decisions independently, and communicate clearly with cross-functional partners and stakeholders

Tags: Engineering & Design - Product

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/anthropic-staff-software-engineer-auth-and-identity/