Java Software Engineer

Leidos•San Diego, CA

18h•$69,550 - $125,725•Onsite

About The Position

Leidos is hiring Java Software Engineers, from early-career to senior, for its Intelligence Organization in the INTEL Sector's Cyber & Analytics Business Area. The role is onsite in Point Loma, San Diego, California, supporting national-security missions. Depending on program needs and experience, work may involve Java backend services, system integration, databases, secure communications, or full-stack web development. The engineers build and maintain web applications, including web services, full-stack components, and persistence layers. They work in an Agile Scrum environment with engineers, information assurance and quality assurance staff, and customer representatives. The team applies clean coding practices and S.O.L.I.D. principles to deliver maintainable, secure, reliable software. Work may span on-premises, cloud-hosted, and containerized hybrid environments. The position offers a 9/80 schedule, with every other Friday off. Leidos describes opportunities to develop skills and careers across multiple disciplines and provides competitive benefits, including paid time off, paid holidays, a 401(k) company match, flexible schedules, discounted stock purchase plans, technical upskilling, education and training support, and paid parental leave.

Requirements

Bachelor's degree in Computer Science or a relevant degree and 2–4 years of relevant professional experience.
Active Secret security clearance.
Knowledge of Git or other configuration-management tools.
Familiarity with the Spring Framework, Spring Boot, or comparable application-development frameworks.
Interest in cybersecurity protocols and secure communications.
Experience with Scrum or other Agile environments, such as SAFe or XP.
Ability to work well in a team and excellent written and communication skills.
DoD 8570-approved security certification, such as Security+, required within 90 days after hire.

Nice To Haves

Knowledge of Java Swing GUI.
Knowledge of networking and communication protocols such as TLS handshake and HTTPS.
Experience with Maven.
Experience with web technologies such as HTML, CSS, and JavaScript.
Experience with web services architectures such as REST, SOAP, and AWS.
Experience with software configuration management, such as Git and GitHub.
Experience with continuous integration, quality, and DevOps concepts and tools or technologies, such as Ant, Maven, Jenkins, SonarQube, FishEye, Crucible, Gradle, and JUnit.
Experience with build scripts such as Maven and ANT.
Experience with Agile management tools and concepts such as VersionOne, JIRA, and Rally.
Experience with web server configuration such as JBOSS, Wildfly, and Tomcat.
Experience with database development using Postgres, SQL Server, MySQL, SQLite, or Oracle.
Experience in cloud environments such as AWS, Azure, or hybrid environments.
Experience with containerized or distributed applications such as Kubernetes, and/or infrastructure automation tools such as Ansible or Terraform.
Experience with AI, LLM, or agent-assisted development tools such as OpenCode, Pi, Herdr, and Beads.

Responsibilities

Develop and maintain Java-based backend services, APIs, integrations, and persistence-layer components.
Develop and maintain full-stack web applications, including user-interface components and web services.
Translate user stories, acceptance criteria, system engineering artifacts, and technical requirements into maintainable, secure, and testable software.
Apply secure software-development principles, clean-code practices, automated testing, and established configuration-management processes.
Support software integration, troubleshooting, defect resolution, and deployment across development, integration, test, and operational environments.
Participate in Agile ceremonies, including sprint planning, backlog refinement, reviews, retrospectives, and technical discussions.
Collaborate with teammates to maintain engineering rigor, code quality, test coverage, documentation, and delivery discipline.
Use approved development, build, continuous integration, test automation, and code-quality tools to support reliable software delivery.
Support software development, integration, and deployment across on-premises, cloud-hosted, and containerized hybrid environments, collaborating with infrastructure and cybersecurity teams as needed.
Apply established development practices with guidance, contribute to defined software components, participate in peer reviews and testing, and build proficiency in program tools, architecture, and mission domain.