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Leidos

Senior Software Developer

Leidos
Ashburn, VA $108k - $195k/yr Full time Posted 1d ago
Backend Developer Senior Agile Agile Methodologies Agile Scrum APIs Application Security Data Processing Desktop Support DevOps DevSecOps Embedded System End User Support Engineer Facilities Management Framework Frontend Information Technology (IT) Information Technology It It Support Java Java Language Junit Linux Operating Systems Project Management QA Automation Security Security Automation Software Developer Software Development Software Engineer Software Engineering Software Security Software Testing Spring Boot Spring Framework Systems Technical Support Workflow Management
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Job Description

Build mission-critical software for the FAA supporting next-generation flight service and air traffic systems at an onsite location in Ashburn, VA. Leidos is hiring a Senior Software Developer to design and implement containerized applications in an Agile/SAFe environment, collaborating across systems engineering, product delivery, and DevSecOps teams. This role includes opportunities to work independently on software tasks while using AI-assisted development tools to speed up coding, refactoring, debugging, and test creation.

Compensation: USD 107,900 - 195,050 per year. Experience level: 6+ years (plus education-based experience alignment per requirements). U.S. citizenship required and you must be able to obtain and maintain a favorable Public Trust investigation (SF-85 Public Trust, Tier 2 suitability determination).

What you’ll do

  • Own software development activities individually and with 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 for complex issues impacting multiple areas or disciplines.
  • Participate in Agile scrum ceremonies and related team activities.
  • Troubleshoot and support resolution of technical issues in lab and operational environments.
  • Provide support to system engineering, test engineering, and system owner teams as needed.
  • Communicate with internal team members across multiple disciplines and with client team members; communication may extend to external parties.

Core requirements

  • Bachelor’s degree in Computer Science or a related field with 8-12 years of relevant experience, or a Master’s with 6-10 years. Doctorate may also qualify.
  • Expert knowledge of Java with substantial hands-on programming experience.
  • Extensive web development experience using React, HTML, CSS, and JavaScript.
  • Experience with unit testing tools such as Junit and Mockito.
  • Significant experience with RESTful API and data formats including JSON, XML, and XSD.
  • Significant experience with Spring Framework, Spring Security, and Spring Boot.
  • Significant experience with Linux.
  • 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 effectively communicate verbally and in writing.
  • Ability to obtain SF-85 Public Trust (Tier 2) suitability determination.
  • US citizenship required.

Technologies you’ll work with

  • Java, React, HTML, CSS, JavaScript
  • Junit, Mockito, RESTful API, JSON, XML, XSD
  • Spring Framework, Spring Security, Spring Boot
  • Linux, Git, Subversion, Eclipse, VS Code
  • Agile/SAFe, AI-assisted development tools
  • SF-85 Public Trust (Tier 2)

Helpful experience (preferred)

  • Experience with AI-assisted coding tools (for example, Claude Code, 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.

Benefits

  • Health and Wellness programs
  • Income Protection
  • Paid Leave and Retirement

Posting date: April 30, 2026. Leidos anticipates this requisition will remain open for at least 3 days with an anticipated close date no earlier than 3 days after the original posting date.

Securing your data

  • Leidos will never ask for payment-related information during any part of the application process.
  • Leidos will only communicate through emails generated by the Leidos.com automated system, not free commercial services or WhatsApp/Telegram.
  • If you receive an email requesting payment-related or other personal information, contact [email protected].
  • If you suspect a scam, contact local law enforcement and report to the U.S. Federal Trade Commission.

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