GNC Engineer III

5 - 7 years of relevant GNC Engineering experience in the aerospace and defense industry

Strong understanding of physics, attitude dynamics, orbital mechanics, and software development principles

for algorithm development, numerical methods, or simulation

Familiarity with spacecraft GNC concepts, such as sensors, actuators, state estimation, and control laws

Exposure to filtering or estimation methods (e.g., Kalman filters) through internships, coursework, or projects

Ability to build, test, and debug software and simulation tools

Colorado Base Salary:

$130,000 - $175,000

California Base Salary:

$135,000 - $185,000

Equity + Benefits

including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave

Own all aspects of Guidance, Navigation, and Control (GNC) system development, including architecture definition, algorithm design, verification, hardware integration, and on-orbit operations.

Design, test, and validate GNC flight software and embedded algorithms for spacecraft operating in LEO, GEO, and other orbit regimes.

Develop and maintain spacecraft Attitude and Orbit Determination & Estimation (AOD/AOE) algorithms, including sensor fusion and filtering frameworks (e.g., EKF, UKF, batch least-squares).

Conduct trade studies and provide design recommendations for GNC hardware such as reaction wheels, torque rods, thrusters, star trackers, sun sensors, IMUs, and RF/optical navigation sensors.

Develop GNC algorithms and implement them in flight software; verify performance and robustness through high-fidelity simulation, Monte Carlo analysis, and hardware-in-the-loop testing.

Design, implement, and improve high-fidelity 6-DOF simulation environments for SIL, HIL, and advanced mission analysis.