Java Web Application Developer

• Join an existing team of web developers to provide full-stack web applications that support operational requirements.
• Document and validate web application requirements.
• Develop automated tests that align with test plans.
• Provide architectural design and development support to fulfill web application requirements.
• Participate in software design discussions and recommend use of relevant tools, technologies and techniques.
• Aid in refactoring/updating existing web applications to add new features and improve reliability and performance.
• Ensure compliance with software security requirements by reviewing the cybersecurity posture of web applications.

• US Citizen with at least an active Secret clearance
• Bachelor’s degree and 4+ years of prior relevant experience or Master’s degree and 2+ years of prior relevant experience. Experience may be considered in lieu of degree requirements.
• 3+ years of experience developing, deploying, and maintaining full-stack web applications and software systems
• 2+ years of experience identifying and validating requirements for software applications
• 2+ years of experience with web UI components including HTML, CSS, JavaScript (NodeJS) and Angular
• 2+ years of demonstrated ability to design and build RESTful web services
• 2+ years of experience with Java EE/Jakarta EE integration, Servlets and JDBC
• Experience with PostgreSQL or equivalent and SQL queries
• Solid grasp of Object-Oriented Programming principles, Java EE (Streams, Lambda expressions), Collections framework, and Exception handling, * 4+ years of experience developing, deploying, and maintaining full-stack web applications and software systems
• 3+ years of experience with web UI components including HTML, CSS, JavaScript (NodeJS) and Angular
• 3+ years of experience with Java EE/Jakarta EE integration, Servlets and JDBC
• 3+ years of demonstrated ability to design and build RESTful web services using JSON
• 2+ years of experience with PostgreSQL or equivalent and SQL queries
• Experience with Static Application Security Testing (OWASP, Coverity, SonarQube) and software security compliance
• Strong grasp of Object-Oriented Programming principles, Java EE (Streams, Lambda expressions), Collections framework, and Exception handling
• Self-starter with strong analytical and interpersonal skills and test-driven development experience

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 at www.leidos.com/careers/pay-benefits.

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:September 15, 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:Pay Range $87,100.00 - $157,450.00, 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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.