Senior JAVA Developer

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.

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 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

Required 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 working 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, such as records, enhanced switch, modularity, dependency management, or related language/platform improvements

Experience with version control tools such as Git or GitLab

Experience using issue tracking tools such as Jira or similar platforms

Familiarity with CI/CD concepts and tools such as GitLab CI/CD, or similar platforms

Familiarity with code quality tools such as SonarQube or similar platforms

Ability to work in a Linux environment

Ability to work as part of a team and communicate effectively with people at varying technical levels

Must be a U.S. Citizen

Ability to obtain a Secret clearance

Desired Qualifications:

Master’s degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, Information Systems, or a relevant technical discipline

Experience supporting modernization or refactoring of large Java applications

Experience with Java platform migrations

Experience with Bash scripting or general automation scripting

Experience with Docker, containers, or RHEL 8/9 environments

Familiarity with JGroups or distributed Java applications

Experience helping guide, mentor, or support other developers

Experience supporting software integration and formal test events

Experience writing clear technical documentation, including design notes, release notes, and installation guidance

Experience working on DoD, Navy, or other government software programs

CompTIA Security+, Linux certification, Oracle Java certification, or similar certifications are a plus

#hotjob

#nowhiring

Overview:

Overview

Noblis and our wholly owned subsidiaries, Noblis ESI and Noblis MSD, take on some of the nation’s toughest challenges, delivering advanced solutions to our customers’ most critical missions. We bring together leading scientific, engineering, and management expertise in a culture grounded in objectivity and collaboration, ensuring our work creates lasting impact across federal missions.

We work with a broad range of government agencies in the defense, intelligence, and federal civilian sectors. Learn more and find opportunities at careers.noblis.org

Why Work at Noblis

At Noblis, we share a passion for excellence and innovation, and we create an environment where people can do meaningful work while maintaining the balance that keeps them energized and fulfilled. We seek out individuals with a natural curiosity and desire to collaborate and learn. We believe our people are our greatest strength, and we consistently seek exceptionally skilled, mission‑driven professionals who care deeply about doing work that enriches lives and makes our nation safer.

Noblis has earned numerous workplace awards for our culture, our commitment to employee well‑being, and our dedication to meaningful, impactful work. We also maintain a drug‑free workplace.

Remote/hybrid status is subject to change based on Noblis and/or government requirements.

Commitment to Non-Discrimination:

If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact us.

Total Rewards:

At Noblis we recognize and reward your contributions, provide you with growth opportunities, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work-life programs. Our award programs acknowledge employees for exceptional performance and superior demonstration of our service standards. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs. Other offerings may be provided for employees not within this category. We encourage you to learn more about our total benefits by visiting the Benefits page on our Careers site.

Compensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. The projected compensation range for this position is based on full time status. For part time or on-call staff, compensation is proportionately adjusted based on hours worked. While monetary compensation is important, it's just one component of Noblis’ total compensation package.

Posted Salary Range: USD $120,700.00 - USD $188,725.00 /Yr.