Junior AI Software Engineer Security Clearance

Position: Junior AI Software Engineer with Security Clearance
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- Description Leidos is seeking a Junior Software Engineer with AI-enabled development experience based in Gaithersburg, MD;
Eagan, MN; or Egg Harbor, NJ to support the UK National Airspace System Replacement Product Delivery Team (UK NASR PDT)

This role offers the opportunity to work on real-time, safety-critical systems that directly support national air traffic operations for the United Kingdom. You will help modernize a high-availability air traffic management platform using both traditional systems engineering practices and AI-augmented software development techniques. This is a hybrid schedule with 3 days onsite and 2 days remote. What You’ll Do
* Design, develop, test, and maintain software for real-time, high-availability systems
* Apply AI-assisted development tools to accelerate coding, refactoring, debugging, and automated test generation
* Use AI responsibly across the full SDLC — including requirements analysis, design, implementation, testing, documentation, and code review
* Analyze complex system requirements and translate them into efficient, maintainable designs
* Develop and maintain automation scripts across development, test, and production environments
* Promote code quality, reuse, traceability, and cross-team collaboration

Required Qualifications AI-Driven Engineering Experience We are specifically seeking engineers who actively integrate AI into their daily development workflow.
* Hands-on experience using AI-assisted coding tools (e.g., Claude Code, Git Hub Copilot, or similar) for:
* Code generation and refactoring
* Debugging and automated test creation
* IDE-integrated workflows
* Familiarity with large language model platforms (OpenAI, Anthropic, Google Gemini, etc.)
* Experience designing effective prompts and validating AI-generated output
* Understanding of human-in-the-loop development and responsible AI usage
* Ability to evaluate AI-generated outputs for correctness, performance, safety, and bias — especially in regulated or safety-critical environments
* Experience incorporating AI/ML techniques into software engineering workflows
* Experience with automated testing frameworks Core Technical 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
* Strong object-oriented programming experience
* Proficiency in C, C++, and/or Ada (Ada preferred but not required)
* Experience developing real-time, multi-threaded systems
* Familiarity with Linux (Red Hat), virtual machines, and hypervisors
* Experience with low-level communications protocols (TCP/IP, UDP, SCTP)
* Experience with hardware or complex system integration
* Experience with source control and configuration management tools
* Strong communication skills and ability to work independently and within cross-functional teams
* Ability to obtain and maintain a Public Trust clearance
* US citizenship required Why Leidos You’ll work on systems where performance, precision, and reliability matter — every second. This is not experimental AI for prototypes. This is disciplined, responsible AI applied to mission-critical software that supports national infrastructure. If you’re excited by solving complex problems in regulated, real-world environments — and using AI as a force multiplier rather than a shortcut — we’d like to talk.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:
February 18, 2026 For U.S. Positions:
While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:
Pay Range $69,550.00 - $ The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or…