Maintain and support access control system components including door hardware, electronic locks, card readers, request-to-exit devices, door contacts, sounders, remote release devices, access control panels, controller boards, reader boards, input/output boards, cabling, power supplies, workstations, badging stations, and related equipment. Install, configure, maintain, and troubleshoot security software platforms including Acre/Open Options DNA Fusion Access Control, Avigilon Unity Access Control, Avigilon Unity Video Management, Windows and Linux server operating systems, Windows and iOS client operating systems, and associated database management software.