
This onsite Principal Systems Engineer role within Raytheon's Systems Engineering and Test Capabilities organization in Tucson, Arizona focuses on the development and integration of software-intensive defense systems. The position requires managing the full systems engineering lifecycle, including developing and verifying requirements, conducting trade studies, and performing system modeling using tools like Cameo. Key responsibilities involve leading integration and test activities, analyzing performance data, mentoring engineering teams, and collaborating with cross-functional groups to ensure mission-critical solutions function reliably. The role appeals to candidates seeking to contribute to national security missions while working in a culture that values innovation, safety, and technical rigor. Candidates must hold U.S. citizenship and possess an active or transferable DoD Secret security clearance. The position is based entirely on-site with potential for occasional travel to test sites or customer locations.