Job ID: 722350BR Date posted: Mar. 31, 2026
Description:WHO WE ARE
Lockheed 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 DOING
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.

THE WORK
Lockheed Martin is seeking a talented Sr. Systems Engineer with a Secret security clearance to work from our Cape Canaveral, FL location.

This position supports the GPS On-Orbit Sustainment Team, primarily supporting the maintenance and operation of the GPS Simulators.

As Sr. Systems Engineer you will:

• Provide maintenance, support, and technical expertise for the GPS IIR/IIR-M Modernized Telecom Simulator (MTS), the GPS III Spacecraft Simulator (G3SS) and the GPS IIIF Spacecraft Simulator (GSS+).
• Operate, troubleshoot and status the simulators and associated equipment.
• Assist satellite software and system testers with the capability and operations of the simulators
• Support cybersecurity efforts, provide 24 hour on-call support, and prepare for/recover from natural disasters as needed
• Conduct cybersecurity test and evaluation of hardware and/or software designs to verify and validate compliance with defined specifications and requirements.
• Employ cybersecurity processes, methods, techniques, and tools and assure their consistent application.
• Perform system administration, data archival, and system security in accordance with cybersecurity regulations and contract requirements.
• Work closely with Sustainment Engineers, Information Assurance Groups, Space Force operational units Systems Analysts, and anomaly response personnel
• Perform installations and upgrades to simulator operating systems and commercial off-the-shelf hardware, software and database packages and ensure they are implemented in accordance with Space Force and DoD policies and procedures.

WHY JOIN US
Opportunity 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: LM 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 & recognition

We care about our employees and offer a generous benefits package: 401K, PTO, and work/life balance and more.
Basic Qualifications:
• Familiar with Risk Management Framework for DoD systems.
• A desire to learn, grow, and share knowledge in the cybersecurity domain.
• DoD 8570 approved baseline certification for IAT Level II (IE CompTIA Security+, GSEC SSCP, CCNA-Security, CISSP) or ability to obtain w/in 6 months.
• Ability to work in a team environment as well as independently, demonstrate excellent problem-solving abilities, be well organized, flexible, and self-motivated.
• Expertise in Unix / Solaris operating systems, Jazz or similar scripting language
• Experience with supporting troubleshooting, problem resolution, using standard test equipment such as, oscilloscopes, spectrum analyzers and function generators in Aerospace / Military Satellite applications.
• Solid understanding of computer systems administration and embedded system architectures
• A Final Secret Clearance is required for consideration
Desired Skills:
• Experience with supporting troubleshooting, problem resolution, and pre-launch Space Vehicle (SV) tests
• Previous SV Simulator operations experience.
• Experience supporting System Test and Evaluation Cyber Security events
• Familiarity with LM Property Custodian procedure and Government Furnished Equipment accountability
• Experience applying RMF to DoD IT systems.
• Experience with vulnerability scanning.
• Experience with DISA IAVMs and STIGs.
• Familiar with GPS IIR, IIR-M and III Space Vehicle subsystem
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: 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: 9x80 every other Friday off
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: SPACE
Relocation Available: Possible
Career Area: Systems Engineering: Other
Type: Full-Time
Shift: First