Guidance, Navigation, & Controls (GNC), Controls Engineer

Location: Onsite in Houston, United States, at the Space Station Development Facility. Proof of U.S. citizenship or U.S. permanent residency and completion of a U.S. government background investigation are required.

Company

hirify.global develops commercial human spaceflight services, advanced spacesuits, and Axiom Station, a commercial space station for research and sustained human presence in orbit.

What you will do

• Design, analyze, and implement GNC algorithms and control laws for spacecraft and other aerospace vehicles.
• Develop high-fidelity 6-DOF vehicle, sensor, actuator, and environmental disturbance models.
• Evaluate control effectors such as thrusters, reaction wheels, and control moment gyroscopes.
• Run Monte Carlo analyses, sensitivity studies, stability assessments, and nominal/off-nominal performance simulations.
• Translate algorithms into flight-ready software and integrate, test, and verify functionality through SIL, HIL, and integrated system testing.
• Collaborate with propulsion, avionics, structures, embedded software, and mission operations teams while supporting design reviews, anomaly analysis, and technical documentation.

Requirements

• Bachelor’s degree in Aerospace Engineering or a related technical field.
• 4–9 years of relevant experience or an equivalent combination of education and experience.
• Experience developing attitude control systems for flight vehicles, preferably spacecraft, in areas such as control-law development, stability analysis, momentum-exchange actuators, flexible modes, or optimization.
• Experience with SWIL/HWIL testing, actuator characterization, model development, and 6-DOF Monte Carlo simulations.
• Proficiency in C++, MATLAB, and/or Python; experience with NASA Trick and JEOD is preferred.
• Must be able to work onsite in Houston and work evenings or weekends when required for critical project milestones.

Nice to have

• Experience with NASA’s Trick simulation framework and JSC Engineering Orbital Mechanics (JEOD).
• Spacecraft control-system development experience.

Culture & Benefits

• Mission-driven work focused on commercial space infrastructure and human spaceflight.
• Environment emphasizing leadership, innovation, teamwork, accountability, and ownership.
• Fast-moving, ambiguous projects requiring resourcefulness, adaptability, and high-quality execution.
• Work may involve office-based tasks as well as indoor or outdoor activities depending on project needs.