Java Developer

Job Responsibilities: Noblis MSD is seeking a Senior Java Developer to support a large-scale software project for U.S. Navy programs. This is an onsite position based at the Philadelphia Navy Yard. Noblis MSD supports Naval Sea Systems Command (NAVSEA) and Naval Surface Warfare Center Philadelphia Division (NSWCPD) by providing engineering, software development, systems integration, cybersecurity, logistics, and life-cycle support to Navy programs. The Senior Java Developer will work as part of a software development team to design, develop, maintain, test, and support Java-based applications. The ideal candidate has experience working with large software codebases, helping improve existing applications, and supporting other developers through collaboration, code reviews, and technical guidance. Other languages include Gradle, bash, python, structured text, and ladder logic. Design, develop, maintain, and enhance Java software applications Support software development, troubleshooting, testing, integration, and release activities Work with large existing Java codebases and help improve maintainability over time Review, understand, and update existing software as needed Support modernization, refactoring, and performance improvement efforts Participate in code reviews and help promote good software development practices Support build, deployment, and release activities using tools such as GitLab, Jira, SonarQube, or similar platforms Assist with troubleshooting software issues identified during development, integration, testing, or field support Help mentor or guide other developers when needed Collaborate with software developers, testers, engineers, cybersecurity personnel, and program stakeholders Support technical documentation such as design notes, release notes, installation instructions, and user/support guidance Communicate status, blockers, risks, and technical issues clearly and professionally