> Markdown version of [/jobs/ext/4013928-nprincipal-java-developer](https://www.wearedevelopers.com/jobs/ext/4013928-nprincipal-java-developer). 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). --- # nPrincipal Java Developer - **Company:** Nabout Leidos - **Location:** Bethesda, MD, United States - **Salary:** $131,300.0 - $237,350.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Java (Programming Language), Agile Methodology, Amazon Web Services, Amazon S3, Microsoft Azure, Bash Shell, Software Design Patterns, DevOps, Spring Framework, Junit, Python (Programming Language), NoSQL, Software Engineering, Systems Integration, Scripting, Google Cloud, Performance Monitor, Restful APIs, Software Version Control, Microservices - **Published:** October 29, 2026 - **Apply:** https://jobs.military.com/career/379869/principal-java-developer-maryland-md-bethesda ## About the Role * In-depth experience with common Agile practices, service-oriented environments, and software development practices.\n * In-depth experience with Java and the Spring Framework, microservices architecture and design patterns, implementing RESTful APIs, and integrating with relational and NoSQL databases.\n * In-depth experience integrating with and delivering software solutions within DevOps toolsets and practices.\n * Direct experience utilizing software testing and performance tools, such as JUnit, and scripting languages, including Python and Bash, within an Agile development environment.\n * In-depth experience developing solutions in commercial cloud platforms (e.g., AWS, Google Cloud, Azure) and leveraging cloud data services (e.g., S3, RDS, EFS).\n * In-depth experience utilizing version control systems and issue/problem tracking systems.\n * Education and Experience: Bachelor's degree with 12 or more years of prior relevant experience, or a Master's degree with 10 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree.\n