Senior Java Architect & Technical Lead — Onsite TS/SCI (Richardson)

RTX is seeking a onsite Senior Software Architect/Engineer in Richardson, TX. The role requires U.S. citizenship and a current TS/SCI security clearance. You will guide the development team, design scalable architectures, review code, and mentor staff to uphold high standards.

Responsibilities include collaborating with product managers and stakeholders, diagnosing complex problems, planning projects, and keeping documentation up to date. A STEM degree and extensive Java experience are essential.