Skip to main content
Updated daily · Sep 16, 2026
All open roles

Open role

Principal Software Engineer - Test

RTX (Raytheon)Tucson, AZFull-time107500 - 204500 USD

This engineer will design, integrate, debug, and maintain object-oriented applications, libraries, and hardware interface drivers using technologies such as C#, C++, and Microsoft Visual Studio. Working within the Test Equipment Engineering organization, they will support engineering laboratories, factory operations, production equipment, and product sustainment activities. The position involves translating and deriving software requirements, managing several technical efforts, and partnering with engineers from multiple disciplines. The successful candidate will also guide junior developers and may lead projects or technical teams. It is well suited to an experienced software engineer who enjoys close interaction with hardware, test instrumentation, and mission-focused defense programs. An active Secret-level clearance and U.S. citizenship are required, and the job is fully onsite in Tucson, Arizona.

Requirements

Bachelor's degree in STEM with 8+ years software development experience, or Advanced degree with 5+ years relevant experienceProficiency in C++, C#, Java, Python, or Visual Basic with Visual Studio expertiseExperience with Windows OS, debugging tools, and software troubleshootingHands-on experience with test instrumentation equipment such as oscilloscopes, power supplies, and multimetersActive and transferable U.S. Secret security clearance; U.S. citizenship requiredDemonstrated ability to lead teams and mentor junior engineers
Apply for this role

Listed July 9, 2026 · Verify details with the employer before applying.

About RTX (Raytheon)

Tucson houses Raytheon's missile and defense HQ producing precision-guided systems, and has flight-tested an AI/ML-powered Radar Warning Receiver.

More roles at RTX (Raytheon)