Senior Software Developer

Job Description

Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next‑generation flight service and air traffic systems. This work aligns with the FAA’s initiative to modernize legacy flight service capabilities, replacing aging infrastructure with scalable, cloud‑based platforms designed to improve safety and operational efficiency—particularly in remote and high‑dependency aviation environments.

These efforts focus on delivering mission‑critical, future‑ready solutions that provide safety‑critical flight services to the pilot community.

The position is currently unfunded and represents an anticipation of future work.

• Responsible for software development activities both individually and as a member of a team, including writing, testing, debugging, and maintaining source code within an Agile environment.
• Use AI‑assisted development tools to accelerate coding, refactoring, debugging, and test creation.
• Develop solutions to complex issues and problems that impact multiple areas or disciplines.
• Actively participate in Agile scrum ceremonies and other related team activities.
• Troubleshoot and participate in the resolution of technical issues in lab and operational environments.
• Provide support as needed for system engineering, test engineering, and system owner teams.
• Communicate with internal team members across multiple areas and client team members, and with parties external to the organization.

• 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. May also possess a Doctorate.
• Expert knowledge of Java with substantial hands‑on programming experience.
• Extensive experience with web development and commonly used front‑end tools and languages (React, HTML, CSS, JavaScript).
• Extensive experience with unit testing tools such as JUnit and Mockito.
• Significant experience with RESTful API, JSON, XML, 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 (Eclipse, VS Code, etc.).
• Experience working within the Agile Scrum framework.
• Understanding of sound software development principles and practices.
• Ability to effectively communicate verbally and in writing.
• Ability to obtain SF‑85 Public Trust (Tier 2) suitability determination.
• U.S. citizenship required.
• Experience with AI‑assisted coding (Claude Code, Codex, etc.).
• Experience with microservices and cloud‑based environments.
• Knowledge of or experience with Python programming language.
• Knowledge of or experience with Ansible playbooks and YAML.
• Knowledge of or experience with Linux shell scripting.
• Knowledge of or experience with Mongo
  
  DB.
• Knowledge of air traffic control and flight services.

$ – $

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.