Researches, develops, designs, sustains, and tests mechanical and electromechanical products and systems related to commercial HVAC equipment. Directs and coordinates activities involved in fabrication, operation, application, installation, and repair of these products and systems. The role includes mechanical design and product management, technical support, manufacturing and test support, and preparation of engineering and product-support documentation. The position works with heat-transfer systems, including chilled-water systems, air- and water-cooled refrigerant systems, and fluid-pumping systems. It also supports field installations, product testing, sales materials, and compliance with applicable standards and customer requirements. Work is performed in office and manufacturing environments, with possible field support at customer sites and equipment installations. Hands-on support may involve working around products and systems in factories or at customer locations.