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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Developer Sr Principal - **Company:** General Dynamics Information Technology - **Location:** Fairfax, VA, United States (Remote available) - **Experience:** Expert - **Salary:** $129,813.0 - $170,200.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, HTML, Java (Programming Language), Agile Methodology, Artificial Intelligence, Software Applications, JIRA, Cloud Computing, Software Quality, Code Review, Continuous Integration, Data Stores, Programming Tools, Github, PostgreSQL, Node.Js, Object-Oriented Software Development, Redis, Secure Coding, Software Engineering, SQL Databases, Web Applications, Web Services, Extensible Markup Language (XML), Enterprise Software Applications, Spring-boot, Caching, AngularJS, Git Flow, Information Technology, Restful APIs, Microservices - **Published:** October 15, 2026 - **Apply:** https://dejobs.org/x/x/FBD5BA03254C4ACDBAA2928F677DFDD4/job/ ## About the Role Artificial Intelligence Technologies,GitHub,Java Full Stack Development,Software Development Life Cycle (SDLC),Spring Boot Experience: 10 + years of related experience, * Bachelor's degree in Computer Science, Engineering, or a related technical discipline, or equivalent education, training, or work/military experience * 10+ years of object-oriented software development * 10+ years developing Java web and enterprise applications (Java, web services, HTML, XML) * 5+ years developing with Spring Boot and designing RESTful APIs * 10+ years of SQL experience * 5+ years of microservices development * 3+ years in a technical lead or architect role, including design authority and team technical oversight * Full-stack Java development experience * Strong knowledge of Java object design and patterns, with the ability to translate them into efficient code * Experience with Git and GitHub (branching strategies, pull requests, code reviews) * Experience with Jira for work tracking in an Agile environment * Experience with AI-assisted development tools such as Amazon Q Developer * Strong written and verbal communication skills; stays current on development tools and techniques It would be great if you also had: * Experience with Angular and/or Node.js * Experience with Valkey (or Redis) for caching and data store use cases * Strong PostgreSQL knowledge * CI/CD pipeline experience * Prior Medicare Secondary Payer (MSP) and CMS contract experience are strongly preferable, * Must pass a CMS background check and meet the residency requirement of having resided in the US at least 3 of the last 5 years in order to obtain a Public Trust. ## Description We are seeking a Software Developer Sr Principal to support the Centers for Medicare & Medicaid Services (CMS) on the Medicare Secondary Payer Systems Contractor (MSPSC) contract. Your work will help protect the integrity of the Medicare Trust Fund by maintaining the systems that identify other insurance coverage that should pay primary to Medicare, so claims are paid correctly. How You Will Make an Impact Architecture and Technical Leadership * Define and own the technical architecture and design standards for the Coordination of Benefits & Recovery (COB&R) application, ensuring alignment with CMS tool and architecture guidelines. * Lead the technical direction of large projects, providing oversight, design reviews, and code reviews for the development team. * Evaluate and recommend technologies, frameworks, and patterns, and document architectural decisions and trade-offs. * Translate business requirements into scalable, secure, and maintainable technical solutions. * Drive modernization of legacy components toward Spring Boot microservices, RESTful APIs, and cloud-ready architectures. * Serve as the escalation point for complex technical issues and production incidents. Development and Delivery * Research, design, develop, and modify enterprise-wide systems and application software. * Design, document, develop, and implement highly scalable and secure Java web applications and RESTful services. * Partner with analysts, developers, and CMS stakeholders to enhance COB&R. * Participate in quality assurance initiatives to ensure high product quality throughout the development life cycle. * Leverage AI-assisted development tools, such as Amazon Q Developer, to improve productivity, code quality, testing, and documentation, as encouraged by the MSPSC contract. * Take personal accountability for individual contributions to project success. * Participate in special projects as required. Mentorship * Mentor and coach less senior developers to help them meet deliverables and grow professionally. * Promote engineering best practices, including code quality, testing, secure coding, and effective use of AI-assisted development tools.