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OnebriefOnebriefUnited States

Staff Software Engineer, Full-stack

Staff full-stack engineer defining cross-squad technical strategy, building durable platform abstractions, and driving architectural decisions across a modern React/Node.js stack for AI-powered military collaboration software. Requires 12+ years experience, org-level architectural ownership, and sophisticated use of AI coding tools.

180k – 230k/yr
Remote12+ YOEFullstack Engineering

About the role

What You'll Do

  • Define and drive cross-squad technical strategy, identifying systemic gaps, proposing architectural direction, and seeing complex initiatives through from framing to delivery.
  • Shape the conditions for squads to succeed: establish durable abstractions, shared patterns, and platform primitives that reduce friction across teams.
  • Operate in the highest-ambiguity spaces: problems that aren't yet well-formed enough to assign to a squad, where your job is to bring clarity and make them tractable.
  • Drive architectural decisions that outlast any single squad rotation, balancing long-term system health with the pragmatic pace of a high-velocity org.
  • Establish and evolve engineering norms: how the team uses AI-assisted development, what good code review looks like, and how we reason about build vs. buy vs. adopt decisions.
  • Mentor and elevate engineers across squads through the quality of your reviews, your RFCs, and how you show up in technical conversations.
  • Partner with product and engineering leadership to shape the roadmap from a technical perspective, surfacing constraints and opportunities that aren't visible without deep system knowledge.

What We Look For

  • 12+ years of software engineering experience, with a track record of technical ownership that spans teams, not just projects.
  • Demonstrated ability to set architectural direction at the org or platform level.
  • Fluency across the full stack, with the depth to go from frontend architecture to infrastructure trade-offs.
  • Experience building in a squad or rotation-based model, or the clear instincts of someone who would thrive in one.
  • Strong understanding of distributed systems, API design, data modeling, and cloud-native infrastructure at scale.
  • Active and sophisticated use of AI coding tools, with a point of view on how they should be used well.
  • Exceptional communication: the ability to write RFCs that get alignment, give feedback that lands, and make complex trade-offs legible to non-technical stakeholders.
  • Comfort in ambiguity: you make progress without waiting for full clarity, and you bring others along.

Nice to Have

  • Background in mission-critical or high-compliance domains (FedRAMP, SOC2, DoD).
  • Experience with authentication and identity infrastructure at scale (OIDC, SAML, federated identity).
  • Prior experience in a high-growth B2B SaaS environment scaling through significant inflection points.
  • Familiarity with event-driven architectures and the trade-offs of async-first system design.

Core Tech We Use

Frontend: React, TypeScript, Vite, shared component libraries, client-side observability.
Backend: Node.js, PostgreSQL, Redis, secure RESTful APIs, distributed services.
Authentication & Authorization: Keycloak, OpenID Connect (OIDC), SAML 2.0, OAuth 2.0, ABAC, JWT, federated identity provider integrations.
Infrastructure: Kubernetes, AWS, Terraform, CI/CD pipelines, container security and secrets management.
Integrations: CSV/Excel/KML importers, PDF exports, DoD and enterprise data systems, secure API gateways, auditing pipelines.

Skills

ReactTypeScriptNode.jsPostgresRedisKubernetesAWSTerraformkeycloakOIDCSAMLOAuthjwtDistributed SystemsAPI Design
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