Sr. Principal Systems Engineer - Missile Guidance, Navigation, & Control Engineer

This engineer will help design and validate missile GNC functions, including embedded tactical flight code, performance studies, simulations, and testing. The position supports current and future programs by assessing system behavior, optimizing designs, analyzing disturbances, and integrating software and firmware against system requirements. The engineer will work in an Agile environment, helping shape technical plans and metrics while mentoring less experienced engineers and coordinating with broader program teams. Success requires substantial experience in missile systems, control theory, navigation, signal processing, or modeling and simulation, along with strong programming and systems engineering capabilities. This onsite Tucson role is well suited to a technically accomplished engineer who can lead complex analyses, communicate with senior stakeholders, and guide multidisciplinary development efforts.