Nalco Water, an Ecolab Company, is seeking a talented engineer with expertise in mechanical engineering, hardware design and testing to join the Global High Tech R&D team located in Naperville, IL as a Senior Mechanical Engineer. The GHT team supports Ecolab's Data Centers, Microelectronics, and Colloidal Technologies segments. This role will support hardware design and development innovation projects for our Data Center portfolio, communicate regularly with the field/customers/business leaders,