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Principal Software Engineer - Test
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.
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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.
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