Software Engineer - SWE - TS​/SCI Poly

About Navius

Navius delivers mission-focused engineering support for critical national security work. We build and sustain technical capabilities in secure environments, with an emphasis on reliable execution, strong collaboration, and practical problem solving. Our teams work closely with mission stakeholders to deliver software that is usable, maintainable, and effective in real operational contexts.

Navius is hiring Software Engineers to help design, build, test, and maintain software solutions that support complex mission needs. Engineers in these roles contribute to new application development, enhancement of existing systems, system integration, performance improvement, and long-term platform sustainment across secure technical environments.

This work may involve application development, back-end services, data processing, distributed systems, automation, cloud-based tooling, or full-stack engineering, depending on team needs and the candidate's background.

This posting represents hiring across SWE 0 through SWE 2. Final level placement will be determined based on experience, technical background, and overall fit. We are open to candidates ranging from early-career software engineers building a strong technical foundation to more experienced engineers ready to take on broader implementation and technical ownership.

• Design, develop, test, and maintain software applications and services
• Support mission systems through feature development, bug fixes, and technical improvements
• Collaborate with software engineers, systems engineers, testers, and mission stakeholders
• Participate in troubleshooting, debugging, and performance tuning
• Contribute to system integration efforts across tools, services, and data sources
• Follow established development processes, security requirements, and technical standards
• Assist with documentation, implementation planning, and transition activities as needed

• Build clean, maintainable, and testable software
• Solve technical problems in complex, mission-focused environments
• Collaborate effectively with engineers, testers, and mission stakeholders
• Adapt to evolving technical requirements, priorities, and customer needs
• Care about reliability, usability, and long-term sustainability in the systems they build

• Active TS/SCI clearance with polygraph
• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Mathematics, or a related technical discipline, or equivalent relevant experience
• Experience with software development in one or more modern programming languages
• Familiarity with software development lifecycle practices, testing, and debugging
• Ability to work on-site in Annapolis Junction, MD

• Experience supporting NSA or other intelligence community mission environments
• Experience with distributed systems, cloud technologies, microservices, or data-intensive applications
• Experience with Java, Python, C++, JavaScript, or similar technologies
• Experience with Linux-based development environments
• Experience with Agile or team-based software development practices
• Experience with Dev Ops, CI/CD pipelines, containerization, or automation tooling

Navius supports mission-driven technical work with a focus on trusted execution, strong engineering, and long-term customer value. We are building teams of thoughtful engineers who can operate effectively in high-consequence environments and who care about delivering meaningful results. Whether you are earlier in your career or bringing deeper experience, you will have the opportunity to contribute to important work alongside people who take both the mission and the craft seriously.

Navius offers a competitive compensation package and benefits designed to support employees professionally and personally. Current benefits include healthcare coverage, dental, vision, retirement/401(k), vacation/PTO, education and training support, and flexible hours.

Navius is committed to providing an environment where all individuals are treated with respect and fairness. We welcome applicants from a wide range of backgrounds, experiences, and perspectives. Employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic under applicable law.

Salary is determined based on a variety of factors, including level, experience, education, technical skills, certifications, market conditions, and contract-specific requirements. For this combined SWE 0-2 posting, compensation may vary by level within the overall posted range.