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Guidance, Navigation & Control Engineer III; Senior - GNC Hardw Security Clearance

Job in Littleton, Arapahoe County, Colorado, 80120, USA
Listing for: Lockheed Martin
Full Time position
Listed on 2026-06-09
Job specializations:
  • Engineering
    Aerospace / Aviation / Avionics, Systems Engineer
Job Description & How to Apply Below
Position: Guidance, Navigation & Control Engineer III (Senior) - GNC Hardw with Security Clearance
Job Number 728137

Description:

About Lockheed Martin Space :
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.

About the Role :
This role will be a valued member of a tight-knit engineering team responsible for a variety of types of GNC (guidance, navigation & control) hardware, including GPSR (Global Positioning System Receiver), RWA (reaction wheel assembly), CSS (coarse sun sensor), ST (star tracker), IMU (inertial measurement unit) or MTR (magnetic torque rod), while supporting multiple programs within LM Space. From procurement, through manufacturing, test, integration and on-orbit operation, you will have the opportunity to work with a variety of subject matter experts to learn on the job.

This role also includes a significant amount of collaboration with external entities, i.e. customers and suppliers, and may include periods of necessary business travel. Successful applicants generally have at least 3+ years of related experience and may have a post-secondary degree or training in a related discipline.

Basic Qualifications:

Skill Requirements:
• Demonstrated experience applying at least one of the following within a GNC or Spacecraft context:
Algorithm Development (e.g., estimation, filtering, control laws), Systems Engineering (e.g., requirements decomposition, interface definition), ATLO (Assembly, Test, and Launch Operations) or Hardware lifecycle support (e.g., integration, test, or operations)
• Knowledge of Guidance, Navigation, and Control (GNC) subsystems (i.e. understanding how components such as GPS receivers, IMUs, star trackers, reaction wheels, etc., contribute to spacecraft state estimation and control)
• Strong written and verbal communication skills Security Clearance / Work Authorization :
• To meet requirements of the program/customer, this position requires the selected employee to be a U.S. Citizen.
• Although not required to start, the selected applicant must be eligible to obtain, and maintain, Top Secret with adjudicated SCI Eligibility (i.e. TS/SCI) for long term employment on this program. Desired

Skills:

• Bachelor's Degree in Mechanical, Electrical, Aerospace Engineering or other related engineering degree
• Experience working with hardware development, including build, test, and integration
• Ability to clearly convey technical concepts, issues, and status to engineering peers, cross-functional teams, and external stakeholders
• Familiarity with orbital mechanics
• Familiarity with spacecraft navigation and attitude determination
• Proficiency in MATLAB and STK 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: 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.…
Position Requirements
10+ Years work experience
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