At the direction of supervisor, maintains, monitors, and performs preventive, predictive, and corrective maintenance on critical equipment, which may include the following: mechanical (including HVAC, computer room air conditioners, chillers, and plumbing) electrical (including UPS, DC battery systems, PDU, generators, transfer switches, and switchgear), cabling (including data and voice, broad band), fire detection and suppression, life safety, lighting, temperature control systems, building management systems, and digital systems (including fire alarm, duress, card access, CCTV). Install and repair plumbing/piping/tubing; wire single and three phase motors; install and rebuild pumps and motors; install and rebuild air compressors; heat exchangers; replace bearings in all types of motors; replace seals on pumps; install and repair piping, valves, filters, hot water systems and associated controls; assist other mechanics and engineers with major repairs and maintenance of building and equipment.