**Description:** 1\. Operate extrusion machines for PET sheet production. 2\. Adjust temperature and speed parameters according to product specifications. 3\. Monitor the production process, checking sheet quality and making adjustments when necessary. 4\. Perform preventive maintenance on machines to ensure proper operation. 5\. Record relevant extrusion process information, such as productivity and product quality. 6\. Follow all safety and hygiene regulations in the workplace. 7\. Work as part of a team, collaborating with other factory staff. 8\. Contribute to continuous improvement of production processes. **Notes on compensation:** The monthly performance bonus can reach up to 40% of the salary.