Leidos is hiring Java Software Engineers for its Intelligence Organization to build, integrate, test, and sustain mission-focused software. The role develops and maintains Java backend services and full-stack web applications, supports secure software delivery across development and operational environments, and collaborates with cross-functional Agile teams.
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
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
Apply established development practices with guidance, contribute to defined software components, participate in peer reviews and testing, and build proficiency in the program’s tools, architecture, and mission domain
Qualification
Required
BS Degree in Computer Science or relevant degree with 2-4 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 +)
Preferred
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)
