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Staff Software Engineer, Authentication and Security jobs in United States
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Onebrief · 2 months ago

Staff Software Engineer, Authentication and Security

Onebrief is a collaboration and AI-powered workflow software company designed specifically for military staffs. They are seeking a Staff Software Engineer to design, build, and operate the authentication and identity systems that power their platform, focusing on reliability, scalability, and secure user experience.
Information TechnologyMilitaryProductivity ToolsSoftware

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
Balance security, user experience, and delivery velocity, ensuring pragmatic decisions that maintain both product agility and engineering quality

Qualification

KeycloakOpenID Connect (OIDC)Attribute-Based Access Control (ABAC)AWSNode.jsPostgreSQLKubernetesTerraformReactTypeScriptRedisSAML 2.0OAuth 2.0JSON Web Tokens (JWT)CI/CD pipelinesSecure RESTful APIs

Required

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
A pattern of multiplying others: through systems, standards, and mentorship
The ability to move fast with judgment while knowing when to ship, and when to reshape

Company

Onebrief

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Onebrief is an AI-powered platform that supports operational planning, collaboration, and decision workflows for military and command teams.

Funding

Current Stage
Late Stage
Total Funding
$311.04M
Key Investors
Battery Ventures,Sapphire VenturesBattery VenturesGeneral Catalyst,Insight Partners
2026-01-13Series D· $200M
2025-06-16Series C· $23.58M
2025-01-28Series C· $50M

Leadership Team

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Grant Demaree
CEO and co-founder
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Company data provided by crunchbase