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Staff Software Engineer — Identity & Access Management

2 months, 2 weeks ago
Serbia
Full-time
Lead
Security Engineer
Software Development
Active Directory CI/CD CockroachDB Git Go Kafka Kubernetes NATS OpenID Connect PostgreSQL SAML TLS
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Xsolla

Xsolla

Xsolla is an international payment solution provider for online games, offering tools to launch, monetize, and scale games worldwide with local payment methods and fraud prevention.

Internet Software & Services
251-1K
Founded 2005
View All Jobs 91

Description

  • Own the technical strategy and architecture for the IAM platform, including authentication, authorization, and session management at scale.
  • Design and evolve OAuth 2.0 and OIDC flows, token lifecycle, and security primitives to meet product and compliance needs.
  • Drive decisions on protocol design, data modeling, and platform reliability across engineering and security stakeholders.
  • Identify systemic risks and performance bottlenecks and lead efforts to resolve them before they become incidents.
  • Define engineering standards and review critical code and designs.
  • Create leverage for the team through documentation, tooling, and mentorship.
  • Collaborate with product, security, and infrastructure teams to align roadmap priorities and technical plans.
  • Serve as the escalation point for complex production issues in the IAM domain.

Requirements

  • Deep understanding of OAuth 2.0, OIDC, and related auth flows, including authorization code + PKCE, client credentials, device flow, token introspection, and refresh strategies.
  • Solid grasp of cookie security, CSRF, XSS, token storage, TLS, and secure session management.
  • Experience designing or operating production-grade IAM or authentication systems.
  • Strong Go (Golang) engineering skills, including idiomatic code, concurrency patterns, and performance profiling.
  • Experience with distributed systems and their trade-offs, including consistency, availability, and failure modes.
  • Experience with PostgreSQL schema design, query optimization, and migrations at scale.
  • Experience deploying, operating, and debugging services in Kubernetes.
  • Experience with Kafka or NATS and event-driven patterns, consumer groups, and at-least-once delivery.
  • Proven ability to lead multi-quarter technical initiatives across teams and influence architecture beyond your immediate team.
  • Strong written and verbal communication skills, including writing RFCs and design docs that are read and acted on.
  • Hands-on experience with the Ory ecosystem (Hydra, Kratos, Keto) in production or via API integration, preferred.
  • Experience with CockroachDB or other distributed SQL databases, preferred.
  • Familiarity with IAM-related compliance requirements such as SOC 2, ISO 27001, GDPR data minimization, and audit logging, preferred.
  • Contributions to open-source security or identity projects, preferred.
  • Experience building or integrating with SCIM, SAML, or enterprise SSO such as LDAP or Active Directory, preferred.
  • Background in platform or infrastructure engineering, preferred.
  • Hands-on experience with modern AI tools such as Claude, Copilot, or Cursor for code generation and review, preferred.

Interested in this position?

Apply directly on the company website

Apply Now

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