Java Developer / Senior Java Developer - TS/SCI Polygraph Required

Java Developer / Senior Java Developer

Location: Bethesda, Maryland

Clearance and Citizenship: MUST Possess a TS/SCI Polygraph and MUST be a US Citizen as required by this customer. No Exceptions!

Leidos has an exciting opportunity for multiple levels of talented Java Developers and Senior Java Developers to join our Intel Sector's Analysis Solutions Business Area in Bethesda, Maryland. Our team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management, delivering innovative technical solutions that support critical national security missions.

This is an excellent opportunity for software development professionals at multiple experience levels to apply their technical expertise, work with modern cloud and DevOps technologies, and collaborate with talented teams to develop and sustain mission-critical capabilities supporting the Intelligence Community.

Located just outside Washington, D.C., Bethesda, Maryland, offers an ideal combination of exciting career opportunities and quality of life. With vibrant neighborhoods, highly regarded schools, outstanding restaurants and entertainment, beautiful parks, and convenient access to Washington, D.C., and the surrounding National Capital Region, Bethesda is a great place to advance your career while enjoying everything the area has to offer.

At Leidos, we recognize the value of our employees and offer a comprehensive, competitive benefits package, including Paid Time Off, 11 paid holidays, a 401(k) with a 6% company match and immediate vesting, flexible schedules, discounted stock purchase plans, technical upskilling, education and training support, paid parental leave, and much more.

Join Leidos and put your technical expertise to work supporting missions that make a difference in National Security!

Job Summary

We are seeking motivated and experienced Java Developers and Senior Java Developers (T3/T4) to support the Agile development, operations, and maintenance of mission-critical systems.

Working within a DevOps framework, successful candidates will contribute to major project deliverables throughout the software development lifecycle, including scope definition and work estimation, architecture and design, coding, and unit testing.

In this role, you will develop, enhance, and maintain high-performance software solutions, contribute to backend architecture, and collaborate with cross-functional Agile teams to address complex customer requirements.

Candidates will be considered for the appropriate level based on their qualifications and relevant experience.

Primary Responsibilities

• Backend Development: Design, develop, test, and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs.
• Software Engineering and Architecture: Participate in software programming initiatives, contribute to backend architectural decisions, and conduct code reviews to support the delivery of reliable, high-quality software solutions.
• Testing and Automation: Develop software system validation and testing methods using JUnit and Katalon, leveraging integrated, custom-developed software solutions to support automated deployment technologies.
• Cloud-Based Development: Develop, prototype, and deploy solutions within cloud-based platforms, leveraging available infrastructure and platform services.
• Agile Collaboration: Support the Agile software development lifecycle following Program SAFe practices, coordinating with team members, Product Owners, and Scrum Masters to ensure User Story alignment and implementation in accordance with customer use cases.
• DevOps and Configuration Management: Document and perform systems software development activities, including deploying build artifacts across different environments using GitFlow constructs and DevOps tools such as GitHub, Jenkins, and scripting languages including Python and Bash.
• Continuous Improvement: Identify and apply software development best practices and standard operating procedures to create innovative solutions that address customer technical needs.

Required Skills, Experience, and Qualifications

The following qualifications apply to both levels unless otherwise noted:

• Familiarity with common Agile practices, service-oriented environments, and software development methodologies.
• Familiarity with Java-based design patterns, RESTful API implementation, and software development within DevOps frameworks.
• Familiarity with commercial cloud platforms (e.g., AWS, Google Cloud, Azure) and cloud data services (e.g., S3, RDS, EFS).
• Familiarity with version control systems and issue/problem tracking tools.
• Experience with SAFe development practices preferred.

• Security Clearance Requirement: All candidates MUST possess an active TS/SCI with polygraph security clearance to be considered.

Java Developer (T3) —

• Bachelor's degree with 4 or more years of relevant experience; or
• Master's degree with 2 or more years of relevant experience.
• Experience may be considered in lieu of a degree.

• Familiarity with Java and the Spring Framework, microservices architecture, and integration with relational and NoSQL databases.
• Direct experience utilizing software testing and performance tools, such as JUnit, and scripting languages, including Python and Bash, within an Agile development environment.

Senior Java Developer (T4) —

• Bachelor's degree with 8 or more years of relevant experience; or
• Master's degree with 6 or more years of relevant experience.
• Additional years of experience may be substituted in lieu of a degree.
• Familiarity with the Spring Framework, microservices architecture, and integration with relational and NoSQL databases.
• Direct experience utilizing software testing and performance tools, such as JUnit, and scripting languages, including Python and Bash, within an Agile development environment.

At Leidos, the opportunities are boundless. We challenge our employees with meaningful assignments that encourage professional and personal growth. We believe that investing in your career strengthens our ability to deliver innovative solutions for our customers.

Take the next step in your career with Leidos. Apply today!

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

November 12, 2026

Pay Range:

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.