Guidance Navigation & Control Engineer III (Senior)

Lockheed Martin•Sunnyvale, CA

22h•Onsite

About The Position

This position is contingent upon the program award expected in September 2026 time frame. 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 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. This position will report directly to the GN&C Manager within the GN&C Talent Center organization of Lockheed Martin Space. As an experienced GN&C analyst in this role, you will be tasked with supporting multiple satellite buses including, but not limited to, the LM400 and LM2100 satellite series.

Requirements

At least 3+ years of related experience.
Possess general 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++.
Must be a U.S. Citizen.
Must be eligible to obtain, and maintain, Top Secret with adjudicated SCI Eligibility (i.e. TS/SCI) for long term employment on this program.

Nice To Haves

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
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.

Responsibilities

Design, analyze, and optimize GN&C subsystem dynamics and control systems using MATLAB/Simulink.
Develop and verify high-fidelity simulation models in MATLAB/Simulink and C++ environments.
Support system integration, test, and verification activities to ensure subsystem performance meets program requirements.
Collaborate with cross-functional teams throughout the program life cycle, from requirements through verification and validation.
Contribute to mission operations and post-launch performance assessments, as needed.