Senior Software Engineer

Senior Software Engineer

The Mission:

Do you want to build software that solves the world's most complex national security problems? At STR, we don’t just write code; we bridge the gap between cutting-edge research and real-world mission success. You will join a multidisciplinary powerhouse of software engineers, physicists, mathematicians, and data scientists dedicated to taking innovative ideas from a whiteboard concept to a mature, deployed implementation.

The Technical Frontier As part of the Knowledge Exploitation & Decisions Systems Group, you will work at the intersection of AI and human decision-making. Our portfolio is diverse and high-impact, including Command & Control (C2) via intuitive human-machine interfaces that help operators make the best possible decisions in high-pressure environments, Trusted AI & Autonomy via simulation platforms to test AI autonomy and evaluating the reliability and responsibility of autonomous systems, and Advanced Reasoning via graph-based reasoning and evolutionary algorithms for resilient workflow optimization, and enhancing language models to assess the feasibility of scientific claims.

What You’ll Do:

Build & Scale: Design and implement flexible microservices and high-performance APIs within a robust DevSecOps ecosystem.

Drive Deployment: Take technical ownership of features within a mature mission planning solution, guiding them through the critical transition from R&D into an active user community.

Collaborate: Work closely with PhD scientists and engineers to translate complex mathematical models and research into production-grade, scalable software.

Own Your Growth: Beyond your initial project, your trajectory will be driven by the intersection of your interests and our evolving R&D portfolio.

Who You Are:

Education: BS or MS in Computer Science or a related technical field.

Experience: 5+ (BS) or 1-2+ (MS) years of professional experience building maintainable, well-documented APIs and software

Technical Depth: Proven proficiency in Java and the Spring ecosystem, with a strong grasp of object-oriented design patterns and a track record of building maintainable, well-documented software.

Independence: You are an autonomous contributor who can take a high-level requirement and turn it into a working technical implementation with minimal supervision.

Mindset: You are a "trailblazer"—someone who is comfortable with ambiguity and loves learning new libraries and languages on the fly.

Our Tech Stack:

Primary: Java 17+, Spring Boot

Infrastructure: Linux, Docker, Kubernetes, Kafka/NATS, GitLab

Secondary: Python (for AI/Data integration)

Logistics

Location:

Hybrid at one of STR’s offices in Woburn, MA, Arlington, VA, Carlsbad, CA or Aurora, CO

Travel: Periodic travel (up to 20%).

Clearance:S. Citizenship required with the ability to obtain a Top Secret clearance.

Pay Information

Full-Time Salary Range: $140,000.00 to $170,000.00

The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.