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An independent guide to Arizona’s AI economyData refreshed daily · Aug 16, 2026
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Sr Mechanical Engineer - HWIL - P3

RTX (Raytheon)Tucson, AZFull-time$86,800 - $165,200

This engineer will join the Test Systems Solution Center and contribute to the full lifecycle of test products supporting RMS development programs. Responsibilities include mechanical design, system integration, coordination across engineering disciplines, and ensuring that HWIL products meet quality and reliability expectations. The work may involve Creo-based modeling, geometric dimensioning and tolerancing, technical documentation, engineering estimates, and collaboration with electrical design teams. The position is suited to an experienced mechanical engineer who can manage independent assignments, communicate effectively across functions, and work onsite in a secure defense environment. U.S. citizenship and the ability to obtain an interim Secret clearance are required before starting.

Requirements

STEM degree with minimum 5 years of relevant mechanical engineering experienceProficiency with Creo Parametric or equivalent CAD modeling softwareStrong knowledge of geometric dimensioning and tolerancing (GD&T) methodsActive or obtainable DoD Secret security clearance and U.S. citizenshipExperience with technical documentation writing and Microsoft Office productsAbility to manage workload and meet deadlines in development environments
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Listed July 4, 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.