Younghee Han

Younghee Han is an accomplished engineering professional specializing in guidance, navigation, and control (GNC). Currently serving as a Staff Navigation Engineer at SandboxAQ since June 2025, Younghee previously held several key roles, including Staff GNC Engineer at Relativity Space and Senior Navigation Engineer at Boeing, where expertise was demonstrated in navigation system development and implementation for reusable launch vehicles and space systems. Career highlights include significant contributions to the development of environmental disturbance models at Amazon, navigation system design and testing at Lockheed Martin, and performance analyses at Raytheon Missiles & Defense. Younghee holds a Ph.D. in Mechanical and Aerospace Engineering from UC San Diego Jacobs School of Engineering.