A.O. Smith is a global leader applying innovative technologies and energy-efficient solutions to products manufactured and marketed worldwide. The company is one of the world's leading manufacturers of residential and commercial water heating equipment and boilers, as well as a manufacturer of water treatment products for residential and light commercial applications. A. O. Smith is headquartered in Milwaukee, Wisconsin, with approximately 12,000 employees at operations in the United States, Canada, China, India, Mexico, the Netherlands, and the United Kingdom. The primary function of this position is to provide highly complex technical/troubleshooting assistance, product information, warranty assistance, and parts order processing which requires in-depth technical product knowledge of a minimum of three product lines of water heaters. The role primarily deals with service professionals or engineers, some facility management, and homeowners, focusing on customers with high demands on single and multiunit applications.