In this Mechanical Test System Engineer role, you will:- Lead the design and implementation of mechanical subsystems for custom sensor test stations, including fixtures, motion assemblies, enclosures, and mechanical interfaces- Own the end-to-end mechanical design lifecycle: concept → CAD → DFM → prototype → validation → bring-up- Collaborate closely with cross-functional partners to ensure seamless integration across mechanical, electrical, and software components- Write and maintain control and automation software to operate motion systems, collect data, and interface with test instrumentation- Drive on-site fixture debug, bring-up, and validation at global manufacturing facilities- Continuously optimize test systems for reliability, cycle time, precision, and serviceability- Build broad technical expertise and develop toward test architecture leadership, influencing the direction of future test platforms