Senior Java Engineer for Navy Systems

Noblis, Inc.; Philadelphia (Philadelphia County); Hybrid; USD 105,000 - 164,000; Full time

Job summary

Noblis MSD is seeking a Senior Java Developer to support a large-scale software project for U.S. Navy programs.

This onsite role is based at the Philadelphia Navy Yard and involves working with NAVSEA and NSWCPD to design, develop, test, and sustain Java-based applications. The ideal candidate has 8+ years of Java experience, familiarity with large codebases, and a track record of collaboration, code reviews, and mentoring.

Qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, Information Systems, or a relevant technical discipline
• 8+ years of experience developing software using Java
• Experience with large or multi-module Java applications
• Experience maintaining, troubleshooting, or refactoring existing Java codebases
• Strong understanding of object-oriented design and software development best practices
• Experience with Java 17 or later
• Familiarity with Java modernization concepts (records, enhanced switch, modularity)
• Experience with Git/GitLab
• Experience with Jira or similar tools
• Familiarity with CI/CD concepts and tools such as GitLab CI/CD
• Familiarity with SonarQube or similar tools
• Ability to work in a Linux environment
• Must be a U.S. Citizen
• Ability to obtain a Secret clearance

Responsibilities

• 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 promote good software development practices
• Support build, deployment, and release activities using 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
• 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

Skills

Java

Large multi-module Java apps

Code reviews & collaboration

Linux environment

Technical communication

U.S. citizenship

Secret clearance eligibility

Education

Bachelor's degree in Computer Science/Engineering/related

Master's degree (preferred)

Tools

Git/GitLab

Jira

SonarQube

Job description

Noblis MSD is seeking a Senior Java Developer to support a large-scale software project for U.S. Navy programs.

This onsite role is based at the Philadelphia Navy Yard and involves working with NAVSEA and NSWCPD to design, develop, test, and sustain Java-based applications. The ideal candidate has 8+ years of Java experience, familiarity with large codebases, and a track record of collaboration, code reviews, and mentoring.