GNC Engineer III

Location: Onsite near Denver, Colorado or Long Beach, California, United States

Base salary: $115,000–$190,000 per year, plus equity and benefits.

Company

hirify.global develops autonomous spacecraft, advanced payloads, mission software, and space-based interceptors for space superiority and defense.

What you will do

• Own GNC system development across architecture, algorithm design, verification, hardware integration, and on-orbit operations.
• Design, test, and validate spacecraft flight software and embedded GNC algorithms for LEO, GEO, and other orbit regimes.
• Develop attitude and orbit determination and estimation algorithms, including sensor fusion, Kalman filtering, and batch least-squares methods.
• Evaluate GNC hardware such as reaction wheels, torque rods, thrusters, star trackers, sun sensors, IMUs, and RF or optical navigation sensors.
• Build and improve high-fidelity six-degree-of-freedom simulation environments for SIL, HIL, and mission analysis.
• Collaborate with avionics, propulsion, software, mission operations, and systems teams on integration, commissioning, calibration, maneuver planning, and anomaly resolution.

Requirements

• Bachelor’s degree in aerospace engineering, mechanical engineering, physics, or a related field.
• 5–7 years of relevant GNC engineering experience in the aerospace and defense industry.
• Strong knowledge of physics, spacecraft attitude dynamics, orbital mechanics, control systems, and software development principles.
• Experience with C++ and/or Python for algorithm development, numerical methods, or simulation.
• Experience or exposure to spacecraft sensors, actuators, state estimation, control laws, filtering methods, and simulation tools.
• Must work onsite near Denver, CO or Long Beach, CA; U.S. citizenship, lawful permanent residence, protected-individual status, or applicable ITAR authorization is required.

Nice to have

• Master’s degree in aerospace engineering or an equivalent discipline.
• Experience with closed-loop control, orbital maneuvering, fault management, flight operations, and real-time console problem solving.
• Experience with spaceflight physics simulations, GNC hardware testing, and line-of-sight performance analysis.
• Ability to maintain or obtain a TS//SCI U.S. government security clearance.

Culture & Benefits

• Health, dental, vision, HRA/HSA options, PTO, and paid holidays.
• 401(k) and parental leave.
• Equity compensation.
• Work in a multidisciplinary aerospace and defense engineering environment.