> Markdown version of [/jobs/ext/4545131-principal-software-engineer-federal-systems](https://www.wearedevelopers.com/jobs/ext/4545131-principal-software-engineer-federal-systems). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - Federal Systems - **Company:** GovCIO - **Location:** Quantico, VA, United States - **Salary:** $162,000.0 - $230,000.0 - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, Application Programming Interfaces (APIs), Agile Methodology, Cloud Computing, Code Review, Software Architecture, Secure Coding, Software Engineering, Systems Integration, Data Analytics - **Published:** November 3, 2026 - **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=3045733043-2 ## About the Role * Software architecture * Advanced software development * System design * Cloud computing * Agile software development * Cybersecurity engineering * Secure coding * Data analytics * API and systems integration * Technical leadership and code review ## Description * Lead architecture and development of secure, scalable software for federal programs. * Translate mission and user needs into technical designs and implementation plans. * Guide engineering teams through development, code review, testing, and delivery. * Apply modern cloud, cybersecurity, data, and software engineering practices. * Collaborate with government stakeholders and cross-functional teams to deliver reliable solutions. * Support continuous improvement of systems that modernize government services.