Ground Software Engineer Sr.

Reference: 730797BRPosted: 2026-06-01Location: King of Prussia, PennsylvaniaClearance: TS/SCICompany: Lockheed MartinDescription:WHO WE ARELockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering.LM SPACE: WHAT WE'RE DOINGSpace is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. THE WORKLockheed Martin is seeking a talented Level 3 Ground Software Engineer with a Final Top Secret security clearance to work from our King of Prussia, PA location.We are looking for software engineers to craft and build innovative solutions for our customers. You will be part of an Agile team that utilizes state of the art commercial standard methodologies such as DevSecOps (automated testing, continuous integration, automated deployment, etc.) and modern development tools. You will participate in progressing system capabilities from early design through site acceptance focused on software reuse, COTS/FOSS integrations, and innovative, affordable best practices. As a member of a hard-working team that are passionate about their trade, focused on mission and system quality, and supportive of timely delivery of features and capabilities. Be able to demonstrate effective communication skills and a desire to have fun with your work.As Ground Software Engineer:• You will design, implement, test, and maintain object-oriented ground system software applications using Java, C#, Rust, Angular, Python• You will support modernization efforts geared toward achieving greater efficiency, security, automation and scalability• You will collaborate with an enthusiastic team of software, systems, and test engineers using the Agile Development methodologySelected candidates will be required to possess Active Top Secret with adjudicated SCI Eligibility (i.e. TS/SCI) prior to starting employment.This is an EARLY-MID CAREER (level 3) ROLE where candidates typically require 3+ years of professional experience and a BS degree.If you think this describes you and you are looking for an opportunity to grow and challenge yourself then we would love for you to apply!WHY JOIN USOpportunity for Impact: Join a team that is at the forefront of innovation in the aerospace and defense industry and make a significant impact on the success of our organization.Professional Development: Take advantage of unparalleled opportunities for growth and advancement within Lockheed Martin, with access to world-class training and development programs.Collaborative Culture: Work alongside some of the brightest minds in the industry who share your passion for excellence and who are committed to supporting each other's success.Competitive Benefits: Lockheed Martin employees play an active role in strengthening the quality of life where we live and work by volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy:• Medical• Dental• 401k• Paid time off• Work/life balance• Career development• Mentorship opportunities• Rewards & recognitionWe care about our employees and offer a generous benefits package: 401K, PTO, and work/life balance and more.Basic Qualifications:• Strong Software Development, Software Engineering background, with a track record of successful project delivery• Experience developing ground subsystems• Demonstrated expertise in Scaled Agile development methodologies, with excellent communication skills for effective collaboration and teamwork across Agile Development Teams.• Active TS Clearance required for consideration with the ability to obtain an SCI.Desired Skills:• Meaningful experience designing and implementing software solutions using the following technologies: Java, C#, Rust, Python, Apache Kafka, Apache ActiveMQ, ELK Stack/OpenSearch, PostgreSQL, Redis, Helm, Kubernetes• Cloud/containerization experience with a good understanding of distributed systems and designing for scalability• Experience developing microservices• Proficient in using Git for version control and collaboration• Working knowledge of DevSecOps Pipelines• Excellent understanding of Agile Methodologies as they relate to the Scaled Agile Framework• Experience with Agile, automated test, CI/CD, and regression testing• Committed with strong problem-solving skills applied to software engineering solutions• Experience with back end development and algorithms• Previous experience delivering highly reliable Communications / Ground subsystemsSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: TS/SCIOther Important Information You Should KnowExpression 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: 9x80 every other Friday offLockheed 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 ProfessionalBusiness Unit: SPACERelocation Available: PossibleCareer Area: Software EngineeringType: Full-TimeShift: First