Principal Systems Engineer – Software Systems Engineer (Onsite)

This position belongs to RTX’s Systems Engineering and Test Capabilities organization and focuses on software-centric systems engineering across missile development and fielded programs. The engineer will manage requirements, use model-based systems engineering tools, support trade studies, and contribute technical oversight during integration, verification, and validation. The role also involves diagnosing system issues, coordinating with embedded software and test teams, presenting technical findings to customers, and producing engineering documentation. It is suited to an experienced systems engineer with strong embedded software integration and test knowledge who can work independently while mentoring others. Candidates must be able to work onsite in Tucson and hold an active Top Secret security clearance with U.S. citizenship.