Key word search:Full-time, On-site, Controls Engineer, Controls Service Technician, Building Automation Systems BAS, DDC Controls Technician, HVAC Controls Programming, Fault Detection and Diagnostics FDD, Commercial HVAC Service Technician, BAS Integration BACnet Modbus LonWorks, Niagara Tridium Controls, HVAC Controls Troubleshooting, Energy Efficiency Building Systems, Sequence of Operations HVAC As a Controls Service Technician III, you will leverage your experience and skills to support our Impact-Driven Service offering that includes Fault Detection & Diagnostics (FDD) by understanding the diagnostics and tasking from the FDD platform and bringing tasks to completion by resolving the root cause.