TS/SCI Full Scope Polygraph - Software Engineer
Colossus Technologies GroupFull Timemid
Chantilly, Virginia, USPosted February 26, 2026
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Job Description
Senior Software Developer
DoD / National Security Domain
Location: Chantilly, VA (On-site)
Clearance: Active TS/SCI with Full-Scope Polygraph required
We’re partnered with a DoD-focused consulting firm seeking a Senior Software Developer to build and modernize a secure Identity Access Management application supporting mission-critical systems.
What You’ll Work With
- Back-end: Java, Spring Boot
- APIs & Services: RESTful API design and integration
- Infrastructure & OS: Red Hat Linux, AWS (desired), Docker, Kubernetes (desired)
- Front-end (nice to have): TypeScript, Angular, modern web app patterns
What You’ll Do
- Develop and enhance secure back-end services and REST APIs.
- Maintain and refactor existing applications used in DoD environments.
- Implement automated testing and participate in code reviews.
- Collaborate within an Agile team and mentor junior engineers on best practices.
What We’re Looking For
- 5+ years of software development experience with Java/Spring Boot.
- Experience in secure, complex environments (DoD, intel, or similar).
- Bonus: ICAM/identity, AWS, TypeScript/Angular, Docker/Kubernetes.
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