Principal Software Engineer in Test Equipment - Onsite in McKinn with Security Clearance

Are you ready to push the boundaries of aerospace and defense technology at one of the world’s most innovative organizations? RTX is seeking a visionary Principal Software Engineer to join our elite Test Equipment team in McKinney, Texas. In this role, you will be at the forefront of developing mission-critical testing solutions that ensure the reliability and performance of our most advanced systems. This is more than just a coding role; it is an opportunity to architect the future of precision engineering while working in a high-impact, collaborative environment where your technical prowess directly influences national security.

We are looking for a forward-thinking problem solver who thrives on solving complex challenges and is eager to grow their career within a world-class technology ecosystem. As a key member of our onsite team, you will collaborate with cross-functional engineers to design, implement, and optimize automated testing frameworks that set the standard for excellence. To be considered for this mission-critical position, you must hold an active, transferable U.S. government-issued Secret security clearance and be a U.S. citizen. If you are passionate about engineering excellence and ready to take your career to the next level with a global industry leader, we invite you to apply and help us define what is next.

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.