Senior Software Developer - Java
About The Position
Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting development of next-generation flight service and air traffic systems. The work supports the FAA’s initiative to modernize legacy flight service capabilities by replacing aging infrastructure with scalable, cloud-based platforms intended to improve safety and operational efficiency, particularly in remote and high-dependency aviation environments. The program delivers safety-critical flight services to the pilot community. As part of a Scaled Agile software development organization, the developer contributes to the technical execution of a program integrating proven, globally deployed technologies with modern cloud-native capabilities. The role works with cross-functional teams and technical leaders to deliver outcomes in a regulated, safety-critical environment. The developer designs and implements software solutions independently, working closely with systems engineering, product delivery, and DevSecOps teams, with a primary focus on containerized application development in an Agile/SAFe environment. The position supports government programs and requires the ability to obtain and maintain a favorable Public Trust investigation.
Requirements
- Bachelor’s degree in Computer Science or a related field with 8–12 years of relevant experience, or a Master’s degree with 6–10 years of experience; a Doctorate may also be held.
- Expert knowledge of Java with substantial hands-on programming experience.
- Extensive experience with web development and commonly used front-end tools and languages, including React, HTML, CSS, and JavaScript.
- Extensive experience with unit testing tools such as JUnit and Mockito.
- Significant experience with RESTful APIs, JSON, XML, and XSD.
- Significant experience with the Spring Framework, Spring Security, and Spring Boot.
- Significant experience with Linux.
- Significant experience with version control systems such as Git or Subversion.
- Experience with common development tools and IDEs such as Eclipse and VS Code.
- Experience working within the Agile Scrum framework.
- Understanding of sound software development principles and practices.
- Ability to communicate effectively verbally and in writing.
- Ability to obtain an SF-85 Public Trust (Tier 2) suitability determination and maintain a favorable Public Trust investigation.
- U.S. citizenship required.
Nice To Haves
- Experience with AI-assisted coding tools such as Claude Code or Codex.
- Experience with microservices and cloud-based environments.
- Knowledge of or experience with Python.
- Knowledge of or experience with Ansible playbooks and YAML.
- Knowledge of or experience with Linux shell scripting.
- Knowledge of or experience with MongoDB.
- Knowledge of air traffic control and flight services.
Responsibilities
- Write, test, debug, and maintain source code individually and as part of a team in an Agile environment.
- Use AI-assisted development tools to accelerate coding, refactoring, debugging, and test creation.
- Develop solutions to complex issues and problems affecting multiple areas or disciplines.
- Participate in Agile Scrum ceremonies and related team activities.
- Troubleshoot and help resolve technical issues in laboratory and operational environments.
- Provide support as needed to system engineering, test engineering, and system owner teams.
- Communicate with internal team members across multiple areas, client team members, and potentially external parties.
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
