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Staff Software Engineer, Authentication and Security

One Brief

Salary not specified
Nov 7, 2025
Remote, US
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Onebrief is looking to design, build, and operate the authentication and identity systems that power their AI-powered workflow software for military staffs, focusing on reliability, scalability, and secure user experience.

Requirements

  • Keycloak
  • OIDC/SAML/LDAP integrations
  • cloud-native infrastructure
  • identity provider integrations
  • access control frameworks
  • token management
  • policy enforcement infrastructure

Responsibilities

  • Design, build, and maintain authentication and identity services that power mission-critical platform access and authorization.
  • Integrate and extend Keycloak to support complex identity provider (IdP) integrations, single sign-on (SSO), and federated authentication.
  • Implement and evolve Attribute-Based Access Control (ABAC) frameworks to enable fine-grained, policy-driven authorization across systems.
  • Work across the stack — from APIs and access tokens to infrastructure automation, deployment, and observability of authentication workflows.
  • Diagnose and resolve reliability, latency, and scalability issues in production authentication and authorization flows.
  • Collaborate on architecture and long-term strategy for secure, resilient, and high-availability identity systems.
  • Implement and refine monitoring, auditing, and alerting for authentication and access events to ensure security visibility and compliance.

Other

  • 8+ years of experience as a Software Engineer
  • Recent experience driving technical impact across teams and time horizons
  • A record of leading multi-quarter initiatives and evolving system architecture
  • Strong architectural judgment with a tight link to product and business outcomes
  • Thoughtful, high-context communication thats driven by a desire for clarity, not control