Senior Software Engineer, SSCS : Authentication

Bangalore · India · Remote · Posted Oct 15, 2026

At a glance

Help build the next generation of authentication services at GitLab as a Senior Backend Engineer on the Authentication team.
Build authentication features across the Rails monolith and GATE, a new service for issuing and validating tokens and managing identities.
Expand authentication mechanisms, including support for identities used by artificial intelligence (AI) agents, and build access management tooling.

Shape the roadmap for GATE and GitLab's authentication services with the team.
Design and implement token issuance, validation, and identity services in Go and Ruby across the Rails monolith and GATE, including new authentication mechanisms such as Workload Identity Federation.
Migrate authentication and token management paths from the monolith into GATE while maintaining reliability across all deployment models.
Build authentication mechanisms from the ground up, such as Workload Identity Federation.
Strengthen security for users and organizations through access management tooling and by addressing vulnerabilities reported through our HackerOne program.
Define and improve standards for style, maintainability, and engineering practices in a high-scale environment, and advocate for them through code review.
Communicate publicly about GitLab initiatives, projects, and contributions from people not working for GitLab Inc. Reflect GitLab's values in these communications.
Ship moderately sized features and improvements with moderate guidance and support from other team members, and collaborate on larger projects, including the build-out of GATE.
Participate in the maintainer trainee program at your own comfortable pace while working toward becoming a project maintainer.

Professional experience with Go and/or Ruby in scaling or mission-critical SaaS products.
Familiarity with authentication and authorization technologies or techniques, such as OAuth, OIDC, SAML, SSO, SCIM, LDAP, JSON Web Tokens (JWTs), role-based access control (RBAC), or identity and access management (IAM).
Knowledge of token systems, cryptographic signing, and key management.
Experience building or contributing to a service from concept to production, including proposal, discussion, and execution.
Proficiency in written and verbal English, with the ability to communicate complex problems and solutions clearly in a remote, largely asynchronous work environment.
Experience diagnosing, preventing, and resolving performance and optimization problems.
Experience working in an iterative software development process, managing your work effectively, staying organized, and following through on priorities.

All roles are remote, however some roles may carry specific location-based eligibility requirements.