
This onsite Senior Principal Systems Engineer role at RTX focuses on driving Model-Based Systems Engineering (MBSE) implementation within the aerospace and defense sector. The position requires an active U.S. government security clearance and involves creating and validating complex MBSE models, integrating engineering tools, and leading system trade studies. Key responsibilities include mentoring team members, developing best practices, and ensuring connectivity between MBSE platforms and hardware design tools. The role appeals to experienced engineers seeking to solve complex global problems within a collaborative culture that values innovation and safety. Candidates will work alongside world-class teams in Tewksbury, MA, Marlborough, MA, Woburn, MA, or Aurora, CO, contributing to mission-critical solutions that protect national security.







