
This onsite Senior C/C++ Software Development Engineer role is based in Tewksbury, Massachusetts, supporting the Patriot air defense system within RTX's aerospace and defense division. The position involves designing and maintaining complex real-time software applications, collaborating with cross-functional teams to ensure system scalability, and optimizing code for performance in high-concurrency environments. Candidates will work within a secure facility and benefit from an optional 9/80 work schedule that supports work-life balance. The role appeals to engineers seeking to contribute to national security missions while working with cutting-edge technologies in a dynamic, purpose-driven culture. A valid U.S. government security clearance is required, and the position offers opportunities for professional growth within a world-class engineering organization.













