A Cathodic Protection (CP) Technician's job is to prevent corrosion on metallic structures like pipelines and facilities by installing, maintaining, and monitoring cathodic protection (CP) systems. This role involves field work to assess corrosion, troubleshoot problems with existing CP systems, interpret data from instruments, and ensure the system is providing adequate protection according to regulatory standards. They work in various industries, including oil and gas, petrochemicals, and utilities, to protect company assets, ensure public safety, and comply with regulations.