Senior Principal Software Engineer

Role overview Lead focused software prototypes that explore how AI capabilities can strengthen existing mission tools. You’ll research needs, shape proposed solutions, and design proofs of concept, while contributing production-quality features in a secure, sprint-based engineering environment.

Responsibilities - Take part in architecture discussions and deliver prioritized features with program leadership. - Research technical approaches and design prototypes to demonstrate whether a proposed capability meets a need. - Build reliable software in response to user requirements and delivery timelines. - Add automated tests to the codebase and improve product quality as you work. - Refine the feature backlog and deliver work through sprint planning and execution. - Coordinate with software integrators to troubleshoot interfaces and resolve integration issues.

Requirements - Proficiency developing in Go and Python, with experience designing or leading new software capabilities. - Experience applying agent-based development, language models, embeddings, or smaller trained models to analytics, including evaluating accuracy, uncertainty, and limitations. - Experience building APIs or SDKs, using a version control repository, and collaborating with integrators. - Ability to work independently while contributing to an adaptable, high-trust team. - A relevant bachelor’s degree, or four years of full-time software engineering experience in place of the degree. - Ability to obtain and maintain a Top Secret clearance; eligibility is limited to U.S. citizens.

Nice to have - Experience with Docker or Podman, GitLab CI, gRPC or Protobuf, SQLite or PostgreSQL, or Kubernetes. - Familiarity with cyber operations or the Scaled Agile Framework.

Benefits and work setup The role includes a base salary range of $145,900–$248,000, with the offer depending on factors such as location, experience, and contract requirements. Benefits described include performance bonuses, health, dental and vision coverage, a matched 401(k), paid time off and holidays, income protection, and flexible arrangements where possible.