Java Software Engineer III- Space Mission Applications- Hybrid

Company: Lockheed Martin
Location: King of Prussia
Posted on: April 1, 2026

Job 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 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 JavaScript • 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 SpaceSBD 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. Other Important Information 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 Schedule Information 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. Security Clearance Information This position requires a government security clearance, you must be a US Citizen for consideration. Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $93,200 - $164,450. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays. (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year. This position is incentive plan eligible. Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $107,300 - $185,840. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays. This position is incentive plan eligible.

Keywords: Lockheed Martin, Lakewood , Java Software Engineer III- Space Mission Applications- Hybrid, Engineering , King of Prussia, New Jersey