Guidance, Navigation & Control Engineer III (Sr.) - Interim Top Secret
Lockheed Martin· Defense· Aug 14, 2026 · 3mo agoPosted 74 days ago
Littleton, CO · Sunnyvale, CA
In office
Full-time
Senior
$137K–$186K est.
3+ years exp
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Job description
Standard Job 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 Team:
The Guidance, Navigation and Control (GN&C) Subsystems and CoreSim Team is made up of enthusiastic and talented individuals that design and produce the hardware, algorithms, and software required to solve the challenging problems of controlling spacecraft systems in a harsh, zero-g environment.
The selected candidate will report directly to the GN&C Manager within the GN&C Talent Center organization of Lockheed Martin Space.
About the Role:
In this Guidance, Navigation & Control Engineer (Senior, Level III) position, we are seeking an experienced GNC Engineer who will serve as a Line of Sight (LOS) analyst.
The role specifically is looking for a specialist in the subject of optical line of sight (LOS) jitter analysis for precision pointing spacecraft to support multiple satellite buses including, but not limited to, the LM400 and LM2100 satellite series. In addition to knowledge in the field of LOS jitter analysis, the candidate should have familiarity with GN&C subsystem architecture, systems engineering, disturbance modelling, dynamometer testing, space vehicle jitter testing, requirements flow down, early program design and analysis, structural analysis, Damping, Dynamics Modeling, Modeling Uncertainty factors, LOS jitter analysis and time/frequency domain analysis.
Successful applicants generally have at least 3+ years of related experience and may have a post-secondary degree or training in a related discipline, such as Aerospace Engineering or other related field.
The information below reflects the standard job description for this position:
Designs, develops, implements, verifies and tests algorithms to perform guidance, navigation and control of aircraft, spacecraft, launch vehicles and upper stages during powered and coast phases of flight, earth orbit, interplanetary cruise and orbital insertion, as well as during staging events. Navigation functions include the statistical processing of measured data points and their substitution into algorithms simulating physical reality. Guidance functions include the formulation of specific equations and control laws to achieve a desired position in space. Control design and analyses processes consist of the development of the control requirements for aircraft, launch vehicles and/or spacecraft.
Basic Qualifications
Skill Requirements:
• Possess domain experience in spacecraft controller design and optimization.
• Experience in developing and verifying performance of simulation models in simulation environments using programming tools that include MATLAB/Simulink, C++
• Possess domain experience in LOS modeling and analysis.
• Familiar with the subject of optical line of sight (LOS) jitter analysis for precision pointing spacecraft
Security Clearance / Work Authorization:
• To meet requirements of the program/customer, this position requires the selected employee to be a U.S. Citizen.
• Interim Top Secret clearance is required to start employment. Applicants must be eligible to obtain Interim Secret to be considered qualified.
• Selected candidates will be required to obtain, and maintain, a government issued Secret clearance for long term employment on this program.
Desired Skills
• Experience with CORESIM
• Experience with flight software development and autocode to C++ and Python
• Attitude Determination and Kalman Filter Experience
• Multi-body dynamics experience
• Familiarity with a GN&C hardware suite for space applications
• Domain experience in dynamics modeling
• Experience with LOS accuracy budgets
• Experience in Finite Element Modeling
• Experience in Disturbance modeling.
• Experience going through a spacecraft program life cycle encompassing requirements generation, design, analysis, integration, verification, and testing of the GN&C subsystem for space applications including mission operations
• Ability to work in a fast-paced, dynamic, collaborative team environment
• Demonstrated good communication skills with the ability to articulate complex technical issues to peers, management, subcontractors and customers.
Pay Information
Full-Time Salary Range: $110300.00 - $204900.00
At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally.
The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.
• Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
• For (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.
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Benefits
Benefits detected in the listing.
Dental
Vision
401(K)
Pto
Paid Time Off
Parental Leave