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Senior Software Engineer

Arlington, VA

About the Team:

STR’s Analytics C2 Division develops novel technologies to solve challenging national security problems through advanced analytics. Our team consists of passionate, motivated individuals with degrees in engineering, computer science, mathematics, physics, and data science. We use our expertise and creativity to take innovative ideas from conception to mature implementation to improve mission success of our customers.

The Collaborative Autonomy and Controls (CAC) Group in the Analytics C2 Division is focused on collaborative autonomy for multi-agent reconnaissance systems operating in multiple domains. By leveraging expertise with machine learning, advanced algorithms, and software development best practices, we build tools that can make a difference in mission planning, autonomous systems reasoning, tracking of illicit activities, and more.

The Role:

As a Senior Software Engineer, you will join a distributed, collaborative team working across STR’s Woburn, MA, and Arlington, VA offices to design, develop, and test advanced algorithms and intelligent software systems. You will play a key role in providing technical leadership and mentoring, contributing across the software lifecycle from concept to deployed systems. Your work will involve developing scalable, adaptable tools that support mission planning, multi-agent coordination, intelligent resource allocation, and efficient tasking for complex sensing systems.

This is a hybrid role based in Arlington, VA, benefiting from STR's flexible work environment. When your tasks do not require access to on-site facilities, remote work options are available.

Who You Are:

  • Active (or recent) security clearance, for which U.S. citizenship is needed by U.S. Government 
    • Strong desire for active Top Secret clearance
  • Bachelor’s degree in Computer Science, Engineering, or a related technical field with 5+ years of experience in software development
  • Proficient in Java and the Spring Cloud Framework for enterprise microservices
  • Experience with collaborative development using version control systems (e.g., Git)
  • Experience with cloud-native development, including microservice architecture, RESTful APIs, containerized deployments (Docker), container orchestration (Kubernetes, Helm charts), and modern DevOps practices such as CI/CD pipelines (GitLab)
  • Strong foundational knowledge of data structures, algorithms, concurrency in distributed systems, and code optimization techniques
  • Proficient in using the Linux command-line environment for debugging, scripting, and system-level operations
  • Proven expertise in validating and testing complex, mission-critical systems
  • Familiarity with Agile software methodologies and team collaboration tools (e.g., JIRA, Confluence)

Even Better:

  • Active Top Secret Clearance
  • Advanced degree (MS or PhD) in Computer Science or a related technical field
  • Experience with:
    • Sensor fusion, geospatial data systems, or distributed sensing frameworks
    • Predictive modeling, machine learning techniques, and advanced data analysis for autonomous systems
    • Task/resource allocation, multi-agent coordination, and dynamic planning systems for autonomous platforms
    • Python fluency for developing robust test and automation pipelines, test frameworks, automation, and RESTful service testing
  • Proficiency with event-driven architectures or message-based systems (e.g., Kafka)
  • Knowledge of advanced mathematical methods, such as constraint optimization algorithms or probabilistic reasoning

Pay Information
Full-Time Salary Range: $134,000 - $184,000

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.

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.

STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info.


STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at appassist@str.us and provide your contact info.

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

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