NAJEEB ULLAH CCTV Technician ELV Technician Riyadh, Saudi Arabia PROFILE CCTV & ELV Technician with 4 years of experience in installation, configuration, maintenance, and troubleshooting of CCTV surveillance systems. Experienced in IP & Analog Cameras, NVR/ DVR Systems, PoE Switches, Structured Cabling, Video Door Intercom Systems, and Door Lock Syst