Principal Software Engineer - Test

Are you ready to redefine the boundaries of aerospace innovation? As a Principal Software Engineer – Test at RTX Corporation in Tucson, you will occupy a critical role at the intersection of cutting-edge technology and national security. We are looking for an ambitious, forward-thinking engineer who is ready to take ownership of complex testing frameworks and ensure the absolute reliability of the systems that protect our nation. If you are passionate about pushing the limits of software quality and want to see your work deployed in high-stakes environments, this is the launchpad for your career.

At RTX, we believe that the best solutions are born from curiosity, rigor, and a commitment to excellence. In this onsite position, you will collaborate with elite teams of engineers to design, implement, and automate robust testing strategies for mission-critical software. We value fresh perspectives and are seeking a candidate who thrives on solving intricate technical challenges and is eager to grow within a culture that prioritizes mentorship and professional development. Because this role requires an active DoD Secret clearance, you will be joining a highly trusted team tasked with delivering world-class engineering solutions that make a tangible difference in the world.

By joining RTX, you are not just taking a job; you are stepping into a dynamic ecosystem where your contributions directly influence the future of defense technology. We offer an environment where your voice is heard, your technical expertise is challenged, and your career trajectory is supported by industry-leading resources. If you are a U.S. citizen with an active security clearance and a hunger to tackle the most demanding engineering puzzles in the aerospace industry, we invite you to help us engineer the future. Apply today and start your journey with a global leader that values your potential as much as you do.

Requirements

• Proficiency in at least one modern programming language (Python, JS, Java, etc.).
• Understanding of software development life cycles and version control (Git).
• Strong problem-solving skills and attention to technical detail.
• Familiarity with cloud platforms (AWS, Azure, or Google Cloud) is a plus.
• Ability to work in an agile, fast-paced environment.
• Degree in Computer Science or equivalent practical experience.