Johnson Controls - - Responsibilities: Performs assigned system service and maintenance including preventative maintenance, commissioning, and installation.; Troubleshoots and resolves security systems (Intrusion, Access Control, IP Video, Intercom, Network, Gates, and Barriers).; Diagnoses and repairs complex electronic control system malfunctions requiring extensive knowledge of electronic or digital controls systems.; Provides sketches of field changes and discrepancies for engineering corrections and drawings.; Communicates with customer upon arrival and before leaving the work site; ensures high levels of customer satisfaction.