Senior Java Software Engineer

Job Summary

Leidos has a new and exciting opportunity for a Senior Java Software Engineer in our Intelligence Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Primary Responsibilities

• Design, develop, test, and maintain enterprise Java applications using Spring Boot and modern software engineering best practices.
• Develop scalable RESTful APIs and backend services supporting mission-critical applications and high-performance enterprise systems.
• Design, optimize, and troubleshoot relational database solutions using MariaDB and other enterprise database technologies.
• Support application modernization initiatives through containerization, Kubernetes deployments, and continuous improvements to system architecture.
• Participate in technical design sessions, architecture discussions, code reviews, troubleshooting, and Agile software development activities.
• Develop and maintain automated testing solutions and GitLab CI/CD pipelines to improve software quality, deployment efficiency, and operational reliability.
• Collaborate with cross-functional engineering teams using Jira and Confluence while supporting the complete software development lifecycle.

Basic Qualifications

• Bachelor's degree in Computer Science or a related technical discipline from an accredited college or university.
• Candidates without Bachelors degrees will require an additional 4 years of software engineering experience.
• Minimum of twelve (12) years of software engineering experience on programs and contracts of similar scope, type, and complexity.
• Experience developing Java enterprise applications using Spring Boot or similar modern frameworks.
• Experience developing RESTful APIs and working with relational databases such as MariaDB, PostgreSQL, Oracle, or similar technologies.
• Experience with container technologies (Docker or Podman), Kubernetes, or other modern application deployment platforms.
• Experience working in Agile development environments using Git-based source control, CI/CD pipelines, and automated testing practices.
• Security Clearance Requirement: Active TS/SCI with Polygraph.

Preferred Qualifications

• Experience developing Angular or other modern web applications.
• Experience with microservices architecture, application modernization, or cloud-native software development.
• Experience implementing GitLab CI/CD pipelines and DevSecOps best practices.
• Experience tuning SQL performance and supporting high-volume enterprise applications.
• Experience using Jira and Confluence to support Agile software development.
• Strong troubleshooting, debugging, and problem-solving skills across application, database, and deployment technologies.
• Experience supporting enterprise software within secure or classified environments.

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it.

Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Pay Range

Pay Range $131,300.00 - $237,350.00

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.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to View email address on click.appcast.io.

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.