Leads full-lifecycle mechanical development of semiconductor capital equipment, from concept and CAD design through fabrication, assembly, testing, installation, and commissioning. Designs fluid, pneumatic, thermal, motion, vacuum, and electromechanical systems; troubleshoots equipment; conducts analysis and verification; maintains engineering documentation; and collaborates with manufacturing, controls, suppliers, customers, and field service. Provides senior technical guidance while independently driving complex engineering problems to completion.