Guidance, Navigation & Control Engineer; Senior, Level III

Job Description

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 Military Space Guidance, Navigation, and Control (GN&C) 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 these systems in a harsh, zero‑g environment.

Due to the classified nature of this opportunity, we can’t talk about everything you’ll do on this program but know that you will play a part in building end‑to‑end solutions and game‑changing technology.

• Design, analyze, and simulate spacecraft control systems, including attitude determination and Kalman filtering.
• Develop and validate GN&C algorithms using MATLAB/Simulink, C++, and Python.
• Perform hardware‑in‑the‑loop and flight software testing to verify control performance.
• Contribute to flight software development and auto code generation to C++.
• Conduct jitter and performance analyses for high‑precision missions.
• Collaborate with cross‑functional engineers, mission operators, and customers to integrate GN&C hardware suites.
• Communicate technical concepts clearly to peers, management, subcontractors, and customers.

• Build and maintain simulation models that reflect real‑world spacecraft dynamics.
• Implement and tune Kalman filters and attitude determination algorithms.
• Execute test plans, capture data, and produce verification reports.
• Generate and review technical documentation, including requirement specifications and design reviews.
• Support rapid iteration cycles in a fast‑paced, collaborative environment.
• Provide technical briefings and status updates to stakeholders throughout the program lifecycle.

Successful applicants will generally have 3+ years of related experience and may have a post‑secondary degree or training in a related discipline.

• 5+ years of related professional experience.
• Bachelor’s or Master’s Degree in Aerospace Engineering or related discipline focusing on control system design & analysis.
• Possess active TS/SCI clearance with CI Poly.
• Experience with flight software development and autocode to C++.
• Jitter Analysis Experience (highly desired).
• Familiarity with a GN&C hardware suite for space applications.
• Mission operations experience.
• 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.

• To meet requirements of the program/customer, this position requires the selected employee to be a U.S. Citizen.
• Although not required to start, for long‑term employment on this program, the selected applicant must:
  Be eligible to obtain, and maintain, Top Secret with adjudicated SCI Eligibility (i.e. TS/SCI).
• Be willing to consent to customer‑required Polygraph examination and receiving favorable results.

Onsite Full‑time:
The work associated with this position will be performed onsite at a designated Lockheed Martin facility.