Mid-Level Java Software Engineer

About the role

Leidos has a new and exciting opportunity for a Mid-Level Java Software Engineer in our INTEL 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!

Mid-Level Java Software Engineers | San Diego (Point Loma), CA

Want to make a difference? Leidos is hiring Java Software Engineers, from early-career to senior, to join our Intelligence Organization. You'll design, develop, integrate, test, and sustain mission-focused software using cutting-edge technology onsite in Point Loma.

Leidos is an industry leader in high-performance, high-reliability solutions that protect our nation and give the warfighter a decisive advantage. Depending on program needs and your experience, you may work on backend Java services, system integration, databases, secure communications, or full-stack web development. If you have big ideas, love innovation, and want to help bring the warfighter home safe, you'll fit right in. Our 9/80 schedule (every other Friday off) lets you do meaningful work without giving up your personal life, with room to grow your skills and career across multiple disciplines.

Primary Responsibilities

• The Java Software Engineers will build and maintain web applications, including web services, full-stack development, and persistence layers.
• You'll work in an Agile Scrum environment alongside a cross-functional team of engineers, information assurance, quality assurance, and customer representatives.
• Using clean coding practices and S.O.L.I.D. principles, you'll deliver code that is maintainable, secure, and reliable.

Depending on assigned work and experience level, responsibilities may include:

• Developing and maintaining Java-based backend services, APIs, integrations, and persistence-layer components.
• Developing and maintaining full-stack web applications, including user-interface components and web services.
• Translating user stories, acceptance criteria, system engineering artifacts, and technical requirements into maintainable, secure, and testable software.
• Applying secure software-development principles, clean-code practices, automated testing, and established configuration-management processes.
• Supporting software integration, troubleshooting, defect resolution, and deployment across development, integration, test, and operational environments.
• Participating in Agile ceremonies, including sprint planning, backlog refinement, reviews, retrospectives, and technical discussions.
• Collaborating with teammates to maintain a high standard of engineering rigor, code quality, test coverage, documentation, and delivery discipline.
• Using approved development, build, continuous integration, test automation, and code-quality tools to support reliable software delivery.
• Support development, integration, and deployment of software across on-premises, cloud-hosted, and containerized hybrid environments, collaborating with infrastructure and cybersecurity teams as needed.
• Will work independently to deliver assigned features and components, troubleshoot technical issues, contribute to design discussions, and work effectively across development, systems engineering, and test teams.

Required Qualifications

• BS Degree in Computer Science or relevant degree with 4-8 years of relevant professional experience
• Must have an Active Secret Security Clearance
• Knowledge with GIT or other configuration management tools
• Familiarity with Spring Framework / Spring Boot or comparable application-development frameworks
• Interested in Cybersecurity protocols and secure communications
• Experience in Scrum Methodology or other Agile environments (e.g., SAFe, XP)
• Works well in a team environment and has excellent written and communication skills
• DoD 8570 approved security certification (i.e., Security +) (Will be required 90 days after hire)

Desired Skills / Knowledge

• Knowledge with Java Swing GUI
• Knowledge with Networking / Communication Protocols such as TLS Handshake and HTTPS
• Experience working with Maven
• Experience with web-based (HTML, CSS, JavaScript) in a web-based environment
• Experience with Web Services Architectures (REST, SOAP, AWS)
• Experience with Software CM (e.g., Git, GitHub)
• Experience with Continuous Integration / Quality, and DevOps concepts and tools / technologies (e.g., Ant / Maven, Jenkins, SonarQube, FishEye, Crucible, Gradle, Junit)
• Experience with Build Scripts (e.g., Maven, ANT)
• Experience with Agile Management Tools and Concepts (e.g., VersionOne, JIRA, Rally, etc.)
• Experience with Web Server Configuration (e.g., JBOSS, Wildfly, Tomcat)
• Experience with Database Development (e.g., Postgres, SQL Server, MySQL, SQLite, Oracle)
• Experience in cloud environments (AWS, Azure, or hybrid)
• Experience with containerized/distributed applications (e.g., Kubernetes) and/or infrastructure automation tools (e.g., Ansible, Terraform, etc.)
• Experience with AI / LLM / agent-assisted development (OpenCode, Pi, Herdr, Beads, etc.)

Additional information

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

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

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.