Reflect Orbital
Senior GNC Engineer
$130K–$220K
Hawthorne, CA · On-site · Senior · Full-time · Posted Aug 31, 2026
- Experience
- 5+ years of professional GNC engineering experience; ideally on spacecraft or other dynamically controlled vehicles.
About the job
Develop and validate full-stack GNC systems for a spacecraft that directs reflected sunlight to the ground, including vehicle dynamics, flight software, and in-orbit performance.
What you'll do
- Design, develop, and test closed-loop attitude and orbit GNC; plan trajectories and attitude profiles.
- Own 6-DOF simulation and Monte Carlo performance analysis; validate flight software with avionics-in-the-loop testing.
- Support sensor and actuator selection, orbit and constellation design, and real-time spacecraft operations.
What they ask for
- 5+ years of professional GNC engineering experience; spacecraft or other dynamically controlled vehicle experience is preferred.
- Technical ownership of a flown GNC subsystem spanning simulation, algorithms, and flight software.
- Strong first-principles physical-system modeling and expertise in attitude and orbit state estimation validated in flight.
- Ability to verify and validate GNC flight software in an integrated environment using HITL testing.
Nice to have
- Experience in guidance, maneuver, and constellation design, including orbit selection, coverage, and station-keeping.
- Experience supporting real-time spacecraft operations from commissioning through console operations and on-orbit anomaly resolution.
Pay
$130K – $220K (base salary)
Tools
Python, C++, Rust, HITL
Model-written summary · the original posting is authoritative