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# Lead Software Developer

- **Company:** Leidos, Inc.
- **Location:** Egg Harbor City, NJ, United States
- **Experience:** Expert
- **Salary:** $87,100.0 - $157,450.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Artificial Intelligence, Communications Protocols, Data Reduction, Perl (Programming Language), Hypervisor, Python (Programming Language), Linux System Administration, Object-Oriented Software Development, Red Hat Enterprise Linux, Regression Testing, Shell Script, Software Engineering, Software Requirements Analysis, Software Systems, Software Testing Automation Framework, Systems Integration, TCP/IP, Virtual Machines, Multithreading, Real Time Systems, Safety Critical Systems, Infrastructure Automation Frameworks, Information Technology, Operational Systems, Machine Learning Operations, Stream Control Transmission Protocol, Software Version Control
- **Published:** August 22, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9111551/lead-software-developer

## About the Role

* Bachelor's degree in Computer Science or related field with 4-8 years of relevant experience. Additional relevant experience may be use in lieu of degree.
 + OR Master's degree with 2-6 years of relevant experience
 * Strong object-oriented programming experience
 * Proficiency in Perl, Python and shell scripting
 * Experience developing real-time, multi-threaded, high-availability systems
 * Experience leading integration and test activities for complex software systems
 * Strong hands-on integration experience with large, distributed, or real-time systems
 * Experience with Linux environments (Red Hat), virtual machines, and hypervisors
 * Experience with low-level communications protocols (TCP/IP, UDP, SCTP)
 * Experience with hardware or complex system integration
 * Familiarity with system maintenance and lifecycle concepts
 * Experience with source control and configuration management tools
 * Ability to plan and prioritize work effectively in a fast-paced environment
 * Strong verbal and written communication skills
 * Demonstrated ability to work independently and collaboratively
 * US Citizenship Required
 * Ability to obtain and maintain a Public Trust clearance
 * Successful completion of background investigations as required by the government customer, * Experience with test automation frameworks
 * Familiarity with AI/ML tools applied within software development workflows
 * Familiarity with Agile life cycle
 * Advanced integration experience in one or more of the following areas:
 + New system functionality integration
 + Regression testing
 + Problem determination and root cause analysis
 + Data reduction and analysis
 + Problem verification and change validation
 * Air Traffic domain knowledge or experience supporting air traffic programs
 * Experience operating in fast-paced, high-accountability environments requiring independent execution

Why Leidos

You'll contribute to software systems where reliability, performance, and precision are essential. This is an opportunity to work on mission-critical infrastructure supporting national airspace operations - collaborating with experienced engineers to modernize complex, real-world systems.

If you are motivated by solving technically challenging problems in regulated, operational environments, we encourage you to apply.

## Description

Leidos is seeking a Lead Software Developer - Early Systems Integration (ESI) to be based in Gaithersburg, MD; Eagan, MN; or Egg Harbor, NJ. This position will support the United Kingdom National Airspace System Replacement Product Delivery Team - UK NASR PDT. This effort delivers enhanced capabilities to replace and modernize the current operational system supporting UK air traffic services.

You will join a dynamic engineering team responsible for building and sustaining real-time, high-availability, safety-critical systems that directly support national airspace operations., * Design, develop, execute integration and test plans, procedures, and cases to verify system functionality, and performance, and maintain software for real-time, high-availability systems

 * Participate in agile software development activities as part of a collaborative engineering team
 * Analyze complex system requirements and translate them into efficient, maintainable software test plans and cases.
 * Lead and mentor junior integrators, influencing technical direction and promote best practices in integration and verification
 * Participate in Agile ceremonies including daily stand-ups, release planning, and sprint reviews as need in support of the SW teams and the build teams.
 * Collaborate with software engineers, system engineers, and program leadership to ensure testability of system design and alignment with project schedules
 * Promote cross-program collaboration, and sustainable development practices
 * Support system integration activities, including hardware and low-level communications interfaces


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