Building Automation Technicians work on building automation systems (BAS) that control HVAC, lighting, and energy systems. They use PLCs, sensors, controllers, and BMS software to install, configure, and maintain systems. Responsibilities include system setup, troubleshooting, calibration, and monitoring. Work environments include commercial buildings, industrial facilities, and smart infrastructure projects. They follow safety standards and automation protocols. Their role ensures energy efficiency, system optimization, and automated control, making them essential in smart building and energy management systems globally.