Monitor the operation and make customer approved adjustments of chilled water systems, heat exchangers, CRAC Units, HVAC, electrical systems, emergency back-up systems, hot water systems, pumps, valves, filters and other mechanical and electrical equipment. The position holder must understand base building and critical environment infrastructure and have experience in performing preventive maintenance, troubleshooting and repairs on all base building and critical system equipment, including electrical, HVAC, fire/life safety, security and emergency back-up systems.