As a member of our Team, you will be supporting all of the listed Facilities, working with a broad range of HVAC equipment from roof top ERV systems to a full Chiller Plant with three - 400 ton Trane chillers, chilled and condenser water pumps that supports the cooling towers, gas fired hot water boiler systems and equipment, gas fired hot water heaters, a gas fired steam humidification boiler, PAO chiller systems, pumping systems, chilled beams, multiple ac units, vav systems and components. About BAE Systems Electronic Systems BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services.