Sr Software Engineer, Applications

📋 Description

• Extend our identity layer in Auth0: authentication flows, token issuance, identity federation.
• Build and maintain our ReBAC authorization model in OpenFGA, the system every authorization
• Own the details of OAuth 2.0 and OIDC in our stack: token flows, JWKS validation, scopes, audience
• Define how AI agents authenticate and receive scoped permissions, so non-human actors operate under
• Drive technical projects that cut across multiple teams and systems, from design through production.
• Set technical direction and quality standards for the team and review the work that ships against

🎯 Requirements

• 5+ years of professional software engineering experience.
• Deep, hands-on knowledge of OAuth 2.0 and OpenID.
• Experience with ReBAC systems (OpenFGA, Zanzibar, SpiceDB): modeling schemas, writing and testing
• Experience with Auth0 or a comparable identity provider (Okta, Azure AD, Keycloak).
• Strong backend skills in Java, Ruby, or Python, with frameworks such as Spring Boot, Rails, or
• Regular use of AI coding tools (Claude Code, Cursor, Codex) for code generation, debugging, and

🎁 Benefits

• Flexible work week
• 401k/RRSP matching
• Mental health support
• Paid sabbaticals
• Generous parental leave
• Flexible work options