Essential Job Functions & Accountabilities: Operates and maintains chiller plant equipment, including but not limited to the following: chillers, chilled water pumps, condensing water pumps, cooling towers and all associated equipment such as pumps, motor gear boxes, fill material, risers, cold water basin, heat exchangers, chiller tube cleaning, make-up water system, water chemistry testing & treatment, controls, variable frequency drives, etc. Operates and maintains boiler plant equipment, including but not limited to the following: steam boilers, hot water boilers, deaerator tank, boiler feed tank, boiler feed pumps, water softeners, make-up water systems, steam traps, heat exchangers, condensate system, water chemistry and testing and all associated equipment.