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# Guidance, Navigation & Control Engineer II - Top Secret

- **Company:** Lockheed Martin
- **Location:** Littleton, CO, United States
- **Salary:** $82,900.0 - $146,165.0
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Programming Tools, Python (Programming Language), MATLAB, Control Structures
- **Published:** July 16, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9035209/guidance-navigation-control-engineer-ii-top-secret

## About the Role

Successful applicants will generally possess a minimum of 1+ years of related experience and may have a post-secondary degree or training in a related discipline.

Successful completion of customer required Polygraph Examination with favorable results is required for long term employment on this program.

Skill Requirements:

 * Strong experience in spacecraft controls design, analysis, simulation, and test.

 * Experience with simulation and programming tools such as MATLAB/Simulink, C++, Python.

 * Experience with Kalman Filtering and Attitude Determination.

Security Clearance / Work Authorization:

 * To meet requirements of the program/customer, this position requires the selected employee to be a U.S. Citizen.

 * Active Top Secret security clearance is required prior to start, and necessary for consideration

 * Top Secret security clearance with adjudicated SCI (i.e. TS/SCI) is required for long term employment on this program.

 * Selected candidates must be willing to consent to Polygraph Examination, receiving favorable results, as required by our end customer.

 * 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.

 * Strong communication skills with the ability to articulate complex technical issues to peers, management, subcontractors, and customers.

This position requires a government security clearance, you must be a US Citizen for consideration.

## Description

In this role, you will contribute to the design, analysis, and testing of guidance, navigation, and control systems that enable spacecraft to operate in complex space environments. You'll collaborate closely with multidisciplinary teams to develop robust, flight-proven GN&C solutions and ensure mission success through rigorous simulation and validation.

What You Will Be Doing:

 * Perform spacecraft controls design, analysis, simulation, and testing activities.

 * Develop and validate GN&C algorithms and flight software.

 * Utilize simulation and programming tools (e.g., MATLAB/Simulink, C++, Python).


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