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Java Software Engineer III- Space Mission - Hybrid Security Clearance

Job in King of Prussia, Montgomery County, Pennsylvania, 19406, USA
Listing for: Lockheed Martin
Full Time, Part Time position
Listed on 2026-02-12
Job specializations:
  • Software Development
    Software Engineer, Java Developer, Full Stack Developer
Job Description & How to Apply Below
Position: Java Software Engineer III- Space Mission Applications- Hybrid with Security Clearance
Job Number 717350

Description:

Protecting what matters most is the mission that matters most. 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 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. 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. The Lockheed Martin Space Combat Effectiveness Core (CEC) team in King of Prussia, PA is building a space combat simulator to model space conflicts. What forces will be needed to win?

How can available resources best be allocated? What are the most effective defenses to adversary threats? CEC software simulates a wide range of scenarios, wargaming the actions from both sides of a conflict to help our stakeholders develop strategy, tactics, techniques, and procedures. The team builds on this foundation for our partners by creating Mission Applications spanning Space Domain Awareness, Battle Management Command/Control and Test/Training.

We are looking for strong, team-oriented full stack Java/JavaScript software developers, background with orbital mechanics, mathematics, gaming and optimization strategies a plus. This position will give you the opportunity to work side by side with extraordinarily talented and experienced engineers, while having the opportunity to lead and mentor less experienced individuals on the team. Summary of key duties:
In this role you will... for this position:
• Performance of all phases of software development (user interface and software services) including design, implementation, testing and verification
• Developing services that solve optimization problems (dynamic programming, non-linear optimization, over-constrained planning, etc. )
• Design and implement interactive applications to visualize, orchestrate and execute the mission objectives
• Work collaboratively in small, fast paced agile teams, focused on product delivery to program customers Our level 3 employees typically have 5-9 years of experience. #LMSpaceMIAA

Basic Qualifications:

- Extensive experience in Java and/or JavaScript.
- Must be a United States citizen and be eligible to obtain a TS/SCI clearance
Desired

Skills:

• Bachelors degree from an accredited college in a related discipline, such as Math, Physics, Aerospace Engineering, Systems Engineering, Software Engineering or other engineering disciplines

• Familiarity with the Space Domain

• Experience designing and implementing algorithms

• Experience developing highly interactive user interfaces with Java Script

• Experience working as a member of an Agile Scrum or Kanban team

• Strong critical thinking and problem solving skills
• Ability to communicate effectively and work in a collaborative environment #SpaceNSS
Security Clearance Statement:
This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: TS/SCI
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: Part-time Remote Telework:
The employee selected for this position will work part of their work schedule remotely and part of their work schedule at a designated Lockheed Martin facility. The specific weekly schedule will be discussed during the hiring process.
Work…
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