Staff+ Software Engineer, Auth & Identity

Anthropic · San Francisco, CA | New York City, NYsenior

En corto

▸Construyes sistemas de autenticación, autorización e identidad para productos clave de Anthropic.
▸Trabajas en problemas 0 a 1 con alto impacto: credenciales para agentes, sistema de autorización con baja latencia y escalabilidad global.
▸Destacan las identidades de servicio y agentes autónomos, con integraciones empresariales profundas.

Requiere dominio del inglés para trabajo técnico y colaboración.

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¿Qué piden?

✓8+ años de experiencia en sistemas backend o de plataforma a escala.
✓Experiencia con OAuth 2.0, OIDC, SAML, SCIM, JWT, intercambio de tokens o federación de identidades.
✓Experiencia con motores de política (Cedar, OPA) o modelos RBAC y control de acceso a recursos.
✓Enfoque profundo en confiabilidad, seguridad y resiliencia en sistemas críticos.
✓Capacidad para liderar dirección técnica, no solo ejecutar.
✓Habilidades para trabajar con equipos de producto, seguridad e infraestructura.

¿No cumplís todo? Es lo normal — tu dossier gratis te dice qué gaps tenés y cómo cubrirlos en la entrevista.

OAuth 2.0OIDCSAMLSCIMJWTToken exchangeWorkload identity federationCedarOPARBAC

¿A quién escribirle en Anthropic?

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About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. 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. We are a platform team with a product surface. The horizontal is the set of services every product consumes: credential minting and exchange, authorization controls, and the canonical record of users, service accounts, agents, and the organizations they belong to. The vertical is the experience where admins author that policy: SSO and SCIM setup, roles and permissions, IP allowlisting, and API key policies. Our work falls into four pillars: • Authentication – Who you are. Credential minting, exchange, and lifecycle; sessions; workload identity federation; auth for async and agentic workloads. • Authorization – What you can do. The policy framework for model, membership, role, and resource access. • Identity – Who belongs to what. The tenant and organization model, and first-class identity for humans, service accounts, and agents, portable across surfaces and cloud environments. • Enterprise – How enterprises connect. SSO, SCIM, login policies, and the admin controls that let customers provision and govern users from their own identity provider. What you'll do You will own critical, high-traffic systems end to end, from design through rollout, operations, and iteration, and help shape the technical strategy for how identity and access work across Anthropic. Representative problems we are working on right now: • Designing credentials for agents and long-running autonomous workloads. • Routing every access decision through a unified authorization system, with low latency, security guarantees, and multi-region resilience. • Building a first-class identity model for service accounts and agents, and linking those identities to other identity and auth systems. • Global distribution and multi-region failover for some of the company’s most mission-critical services. • Deepening enterprise integration: login policies and recovery methods, self-service allowlisting, and tighter integrations with providers. You will work closely with product, security, infrastructure, and the product teams that consume our primitives, and you will be expected to set technical direction, not just execute on it. Many of the problems are 0-to-1 with no established pattern to copy; others are careful migrations of systems that every Anthropic customer depends on in the hot path. You might be a good fit if you: • 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

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