Guidance, Navigation & Control Engineer Level IV - TS​/SCI

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.

In this position, the selected candidate will report directly to the GN&C Manager within the GN&C Talent Center organization of Lockheed Martin Space. The Guidance, Navigation and Control (GN&C) Subsystems and Core Sim 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.

In this Guidance, Navigation & Control Engineer (Staff, Level IV) position, we are seeking an experienced GNC Engineer who will serve as a Line of Sight (LOS) SME.

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 an expertise 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 6+ 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.

• Possess advanced 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 advanced domain experience in LOS modeling and analysis.
• Specialist in the subject of optical line of sight (LOS) jitter analysis for precision pointing spacecraft.

• To meet requirements of the program/customer, this position requires the selected employee to be a U.S. Citizen.
• Active Top Secret clearance with SCI (adjudicated or eligibility) is required for consideration.
• Top Secret security clearance with adjudicated SCI (i.e. TS/SCI) is required prior to start.

• 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.

Security Clearance Statement:
This position requires a government security clearance, you…