Principal GNC Engineer

Space is a war fighting domain. True Anomaly seeks those with the talent and ambition to build the technology that secures it.

True Anomaly delivers decisive capabilities for space superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors — enabling the U.S. and its Allies to secure the space environment and counter threats from the ultimate high ground.

Be the offset. We create asymmetric advantages with creativity and ingenuity.

What would it take? We challenge assumptions to deliver ambitious results.

It’s the people. Our team is our competitive advantage and we are better together.

Best-in-class healthcare: 100% company-paid medical, dental, and vision coverage for you and your dependents, with HSA/HRA options

Generous time off:
Flexible Time Off (FTO) for exempt employees, accrued PTO of up to 25 days for non-exempt employees, plus 12 paid holidays;
Parental Leave;
Sick Leave

Fuel for your day:
Daily catered lunch and unlimited snacks for in-office employees

And more: 401(k) retirement plan, fitness reimbursement, and Dog Fridays

Equity participation:
Equity is included as part of our total compensation package, giving you an opportunity to share in the company’s success.

Own end-to-end development of spacecraft Guidance, Navigation, and Control (GNC) systems, including architecture definition, algorithm design, software implementation, hardware integration, verification, and flight operations

Design, test, and validate GNC flight software for spacecraft operating in LEO, GEO, and cislunar environments

Develop advanced attitude and orbit determination algorithms, including sensor fusion, state estimation, covariance analysis, and Kalman filtering (EKF/UKF/batch)

Design control laws for attitude control, orbit control, maneuver execution, and closed-loop guidance, ensuring required performance and robustness under uncertainties

Lead creation and improvement of high-fidelity 6-DOF simulations, sensor/actuator models, disturbance environments, Monte Carlo pipelines, and SIL/HIL integration

Conduct system-level GNC trade studies and develop recommendations for hardware such as reaction wheels, torque rods, thrusters, star trackers, IMUs, GNSS units, and optical navigation sensors

Define GNC subsystem requirements, interfaces, calibration procedures, verification/validation plans, and support design reviews (SRR/PDR/CDR)

Work cross-functionally with avionics, software, propulsion, mechanisms, mission operations, and systems engineering teams to ensure seamless integration of GNC functionality

Support on-orbit commissioning, calibration, maneuver planning, fault investigation, and anomaly resolution

Mentor junior engineers, lead design/code reviews, and help establish GNC best practices, tools, and development standards

Bachelor’s degree in aerospace engineering, mechanical engineering, physics, or related discipline (advanced degree preferred)

15+ years of hands-on experience developing and fielding spacecraft GNC systems

Strong proficiency in C++ and Python, including software development, numerical methods, and algorithm implementation

Deep understanding of spacecraft attitude dynamics, orbital mechanics, environmental perturbations, and actuator/sensor physics

Significant experience with estimation and filtering (EKF, UKF, batch least squares), sensor fusion, covariance analysis, and navigation performance assessment

Experience designing control laws and performing stability, robustness, and frequency-domain analysis

Demonstrated ability to develop and maintain complex high-fidelity simulations and Monte Carlo frameworks

Experience testing and integrating GNC algorithms with flight…