A CCTV technician installs, maintains, and repairs CCTV and video surveillance systems for clients in residential, commercial, and industrial settings. Key duties include site surveys, hardware installation, network and software configuration, system testing, troubleshooting, and providing technical support to users. The role requires strong technical skills, knowledge of cameras, DVR/NVR systems, networking, and low-voltage cabling, as well as attention to detail and physical ability.