Lead Software Engineer

Software Engineer

UK NASR PDT Evolution Program

Leidos is seeking a Software Engineer 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.

Location

This is a U.S.-based position that offers a balanced hybrid schedule between 2-3 days in the office per week.

What You’ll Do

• Design, develop, test, and maintain software for real-time, high-availability systems

• Lead software development activities independently and as part of a collaborative engineering team

• Analyze complex system requirements and translate them into efficient, maintainable software designs

• Apply sound software engineering principles to ensure code is reliable, fault tolerant, reusable, and maintainable

• Lead and mentor junior developers, influencing technical direction and development processes

• Participate in Agile ceremonies including daily stand-ups, release planning, and sprint reviews

• Develop, tune, document, and deploy automation scripts across development, test, and production environments

• Promote code reuse, cross-program collaboration, and sustainable development practices

• Support system integration activities, including hardware and low-level communications interfaces

Required Qualifications

• Bachelor’s degree in Computer Science or related field with 4–8 years of relevant experience

  • OR Master’s degree with 2–6 years of relevant experience

• Ability to obtain and maintain a Public Trust clearance

• Strong object-oriented programming experience

• Proficiency in C and/or C++

• Experience developing real-time, multi-threaded, high-availability 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

• Strong understanding of modern software development principles and best practices

• 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

Preferred Qualifications

• Experience with Ada

• Experience with test automation frameworks

• Familiarity with AI/ML tools applied within software development workflows

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.

ATMC