Guidance, Navigation & Control Engineer; Senior, Level III

About Lockheed Martin Space

Space is a critical domain, connecting our technologies, our security, and our humanity.

The Military Space Guidance, Navigation, and Control (GN&C) team designs and produces the hardware, algorithms, and software required to solve the challenging problems of controlling these systems in a harsh, zero‑gravity environment.

Due to the classified nature of this opportunity, we can’t discuss every task, but 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.

• Strong experience in spacecraft controls design, analysis, simulation, and test.
• Experience with simulation and programming tools (MATLAB/Simulink, C++, Python) and Kalman filtering/attitude determination.
• Experience performing GN&C design and analysis tasks.

• 5+ years of related professional experience.
• Bachelor’s or Master’s Degree in Aerospace Engineering or related discipline focusing on control system design & analysis.
• 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.
• Excellent communication skills with the ability to articulate complex technical issues to peers, management, subcontractors, and customers.

• Position requires the selected employee to be a U.S. Citizen.
• For long‑term employment on this program, applicant must be eligible to obtain and maintain Top Secret with adjudicated SCI eligibility (i.e., TS/SCI).
• Applicant must be willing to consent to customer‑required polygraph examination and receive favorable results.

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $101,000 - $178,135. For states not referenced above, the salary range for this position will reflect the candidate’s final work location.

Benefits offered: Medical, Dental, Vision, Life Insurance, Short‑Term Disability, Long‑Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.

Additional Washington state benefits: 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.

This position is incentive plan eligible.

Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.