GNC Engineer, Advanced Modeling
Xona· Engineering
Burlingame, California$170k - $200kFull-timePosted 1w ago
About the role
We are seeking a GNC Engineer specializing in advanced modeling to develop high-fidelity simulation and analysis capabilities for aerospace vehicle guidance, navigation, and control systems. You will build nonlinear six-degree-of-freedom simulation environments, develop flexible-body and vehicle subsystem models, and validate those models using analytical, test, and flight data.
Responsibilities
- Develop, maintain, and validate high-fidelity nonlinear six-degree-of-freedom digital twin of the spacecraft bus for design, analysis, and verification.
- Develop flexible-body and structural-dynamics models for integration into vehicle simulations.
- Build and validate physics-based models of vehicle dynamics, sensors, actuators, environmental disturbances, and other subsystems.
- Apply system identification techniques to estimate system parameters and improve model fidelity.
- Derive linear approximate models from nonlinear systems using numerical and analytical techniques.
- Develop simulation capabilities supporting control design, Monte Carlo analysis, software-in-the-loop, and hardware-in-the-loop testing.
- Contribute to model-based software development, verification, documentation, and technical reviews.
Qualifications
- Experience developing nonlinear six-degree-of-freedom simulation platforms for aerospace vehicles.
- Experience modeling and validating aerospace vehicle dynamics, sensors, actuators, environmental effects, and other vehicle subsystems.
- Experience developing or integrating flexible-body and structural-dynamics models.
- Strong understanding of rigid-body dynamics, control systems, numerical methods, and linear systems.
- Expertise in system identification and deriving linear approximations of nonlinear dynamic systems.
- Experience with model-based software development and verification processes.
- Strong proficiency in MATLAB, C++, Git, and Linux development environments.
Skills
Required:Nonlinear six-degree-of-freedom simulationFlexible-body and structural-dynamics modelingSystem identificationModel-based software developmentMATLABC++GitLinux development environments
Benefits
- Offers Equity
Last updated Oct 14, 2026. Interested? Apply on the company site.
About Xona
Next Era Navigational Intelligence | Xona
Xona is the navigation infrastructure company bringing real-time, centimeter-level certainty to any device, anywhere on Earth.
Location servicesPulsarGNSSNavigationPNTsatellites
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