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# Guidance, Navigation & Control Engineer III (Sr.) - Interim Top Secret

- **Company:** Lockheed Martin
- **Location:** Sunnyvale, United States
- **Experience:** Expert
- **Salary:** $101,000.0 - $178,135.0
- **Contract:** Contract
- **Skills:** Systems Engineering, C++ (Programming Language), Programming Tools, Python (Programming Language), MATLAB, Program Design Languages, SC Clearance
- **Published:** June 12, 2026
- **Apply:** https://www.dice.com/job-detail/559a035d-c9b9-4880-9c55-5d2ccc1f2eff

## About the Role

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 knowledge 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 3+ 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 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 domain experience in LOS modeling and analysis.
Familiar with the subject of optical line of sight (LOS) jitter analysis for precision pointing spacecraft

Security Clearance / Work Authorization:
To meet requirements of the program/customer, this position requires the selected employee to ====.
Interim Top Secret clearance is required to start employment. Applicants must be eligible to obtain Interim Secret to be considered qualified.
Selected candidates will be required to obtain, and maintain, a government issued Secret clearance for long term employment on this program.

Desired skills

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.

## Description

In this Guidance, Navigation & Control Engineer (Senior, Level III) position, we are seeking an experienced GNC Engineer who will serve as a Line of Sight (LOS) analyst., Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.


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