Software Engineer (Top Secret Clearance Required)

Company: Lockheed Martin
Location: King of Prussia
Posted on: November 29, 2025

Job Description:

Job ID: 709707BR Date posted: Nov. 04, 2025 Description:Who We Are: Want to work with cutting-edge technologies in a fun, fast-paced, and dynamic environment? Are you a problem solver that takes on challenges that others think are impossible? If you answered yes to these questions, then we invite you to join Lockheed Martin Rotary and Missions Systems (RMS) as a Software Engineer! Lockheed Martin is a global leader in aerospace, defense, and technology solutions. You will be joining Lockheed Martin Rotary and Mission Systems About Rotary and Mission Systems Our team in Warfighter Solutions consists of a variety of engineering disciplines that work together to execute design, development, integration and test of systems and have expertise in Software Defined Radios (SDR), digital signal processing (DSP), GNSS constellation simulation, and signal transceivers. Our team members build strong relationships with one another, founded on trust, open communication, and a sense of camaraderie. This leads to a positive and productive work culture, where team members feel valued, supported, and motivated to contribute to the team's success. We embody the Lockheed Martin core values. Learn more about our Culture here Who You Are: You thrive in a collaborative, multidisciplinary engineering environment and are committed to delivering best-in-class products and solutions. You have an innovative mindset, and capable of finding solutions to complex engineering challenges. You have a Bachelors degree from an accredited college in a related discipline, with 2 years of professional experience, a Masters degree, or equivalent experience/combined education. You currently hold a Top Secret clearance. The Work: • As a Software Engineer for Warfighter Solutions, you can help us take on the world's most important and complex challenges by providing solutions to a variety of technical problems. We provide tactical based solutions which specialize in software defined radio, digital signal processing, constellation simulation, and command and control software in order to support our customers' dynamic needs in supporting the warfighter. • Integrate open and modular hardware and software components in the field of Radio Frequency (RF) systems • Develop software required to support integration and control of waveform processing applications • Supporting Integration & Test (I&T) to troubleshoot and resolve software defects, performance issues, and integration challenges. • Work closely with system engineers to ensure that software development aligns with overall system architecture and requirements, and that testing and validation processes are comprehensive and effective. • Support current software architecture which includes C++, Linux scripting and Qt GUI development utilizing git for CM control. • Engage in daily scrum and other weekly agile meetings • Work closely with the Product Owner, Software Architect, and Chief Engineer to support Customer design reviews and various other milestone events. Why Work For Us: Your Health, Your Wealth, Your Life Our flexible schedules, competitive pay and comprehensive benefits enable you to live a healthy, fulfilling life at and outside of work. Learn more about Lockheed Martin's competitive and comprehensive benefits package. Basic Qualifications: • Security Clearance required prior to start: Top Secret • Experience developing full stack software using Object Oriented Programming • Knowledge of modern DevSecOps tools and practices, including Gitlab CI/CD • Proficiency in developing automated unit, integration, and end-to-end tests • Experience working with Linux OS, including basic system administration (emphasis on RHEL) • Desire and ability to quickly learn unfamiliar technologies and domains in a rapid paced, Agile development environment Desired Skills: • Experience with C++ Software development • Experience with Linux operating system • Experience with software configuration management (e.g. GIT, Jira, Confluence, etc.) • Experience in Full Stack Development • Experience developing mock (stub) interfaces for system testing • Experience in Hardware test and integration • Experience decomposing requirements / features • Effective oral and written communication skills • Methodical approach to problem solving • Working knowledge of Digital Signal Processing (DSP) concepts, software-defined radio (SDR) frameworks, and real-time systems that include a mixture of firmware, embedded, and traditional software applications • Experience in the Radio Frequency (RF) • Experience working with distributed development teams in an agile development environment • Ability/willingness to travel for test events Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration. Clearance Level: Top Secret Other Important Information You Should Know Expression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings. Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility. Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits. Schedule for this Position: 4x10 hour day, 3 days off per week Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics. The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration. At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility. If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications. Experience Level: Experienced Professional Business Unit: RMS Relocation Available: Possible Career Area: Software Engineering Type: Full-Time Shift: First

Keywords: Lockheed Martin, Lower Merion , Software Engineer (Top Secret Clearance Required), IT / Software / Systems , King of Prussia, Pennsylvania