Software Engineer Sr

Space 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 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. We’re creating future‑ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation.

And we’re reimagining how space can connect us, ensuring security and prosperity.

Join us in shaping a new era in space and find a career that's built for you.

Lockheed Martin, a leader in advancing secure communications and cutting‑edge defense technology, is seeking a Software Engineer to join our team in King of Prussia, PA. This role offers the opportunity to work on mission‑critical projects that protect and serve our nation’s defense.

In this position, you will play a key role in software development as part of an Agile Development Team working on satellite communications (SATCOM) systems. You will focus on developing and automating test solutions to ensure robust, secure, and resilient software products that meet high‑performance and security standards.

• Design, develop, and test software solutions that meet customer requirements, particularly for secure military communications.
• Develop and execute automated test cases using tools like Cypress and Selenium (frontend testing) and Postman (API validation).
• Implement high‑quality, efficient, and maintainable code, ensuring comprehensive test coverage across web applications and APIs.
• Collaborate with cross‑functional teams, contributing to requirements creation, test case development, and automated testing efforts.
• Actively participate in Agile ceremonies such as sprint planning, daily stand‑ups, sprint reviews, and retrospectives.

This position requires U.S. citizenship and the ability to obtain a government security clearance, as the facility requires special access.

• Software factory experience
• CICD / Kubernetes / web based app experience
• Automated test experience
• Experience with containerization
• Familiarity with modern backend and web frameworks like .Net Core/Spring Boot or Angular/React.
• Proficiency in Agile methodologies such as Scrum.
• Familiarity with military SATCOM systems and secure communication protocols.
• Strong understanding of the software development life cycle (SDLC), particularly in secure, high‑performance applications.
• Excellent written and verbal communication skills, with the ability to work collaboratively in a fast‑paced, team environment.
• Problem‑solving skills with attention to detail and the ability to manage multiple tasks efficiently.
• Bachelor’s degree in Computer Science, Engineering, or a related technical field.

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.

Onsite Full‑time:
The work associated with this position will be performed onsite at a designated Lockheed Martin facility.