Automation Testing Technicians perform testing of automated systems including PLCs, robots, sensors, and control systems. They use testing tools, simulation software, and diagnostic equipment to identify faults and verify system performance. Responsibilities include system testing, fault detection, reporting, and troubleshooting support. Work environments include factories, automation labs, and project sites. They follow safety standards and testing protocols. Their role ensures system quality, reduces errors, and supports reliable automation deployment, making them essential in industrial automation and quality assurance globally.