Sr Principal Systems Engineer - Onsite

This engineer will work within Raytheon’s Operations and Mission Analysis organization, helping evaluate new technologies and mission concepts across complex defense systems. Responsibilities include analyzing mission and hardware feasibility, building performance and simulation tools, optimizing trajectories, processing large datasets, and creating system visualizations with tools such as STK. The role also contributes to mission-planning software development, technology maturation, intellectual property efforts, and business capture activities. It suits an experienced systems engineer with deep expertise in areas such as guidance and navigation, orbital mechanics, mission analysis, satellite systems, or multidisciplinary design. The position requires onsite work in Tucson and an active Top Secret clearance held by a U.S. citizen before starting.