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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** Leidos, Inc. - **Location:** Saint Paul, MN, United States - **Experience:** Expert - **Salary:** $107,900.0 - $195,050.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Artificial Intelligence, C++ (Programming Language), Code Reuse, Code Review, Communications Protocols, Corona (Software Development Kit), Fault Tolerance, Hypervisor, Linux System Administration, Object-Oriented Software Development, Red Hat Enterprise Linux, Release Management, Software Engineering, Software Requirements Analysis, Software Systems, Software Testing Automation Framework, Systems Integration, TCP/IP, Virtual Machines, Multithreading, Safety Critical Systems, Infrastructure Automation Frameworks, Information Technology, Operational Systems, Stream Control Transmission Protocol, Software Version Control, Devsecops - **Published:** August 20, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3360068685&tx=KJ1919FFG&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * 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 coding tools and agents (Codex, Claude, or similar) * Experience with Agentic and AI-assisted development workflows, including vibe coding * Familiarity with AI-enabled CI/CD, testing, code review, and DevSecOps * Understanding of AI-generated code validation, security, and responsible use 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 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 50% 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 ## Related Videos - [AI Killed DevOps... 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