General Responsibilities : 1. Opening and closing valve. 2. Turn on and off the pump. 3. Help check the condition of work tools and report to Shift Leader if finding deviation. 4. Help sounding and reporting. 5. Cleaning tanks and work tools on schedule. 6. Run Safety Regulation in accordance with applicable policies 7. Implementing the implementation of quality management system (ISO 9001: 2000, ISO 22000: 2005, Halal, SMK3, ISCC system, RSPO, SMART D_Safe, OHSAS 18001, HACCP). 8. Maintain and maintain all the equipment (equipment) and environmental cleanliness (environment) in Yard tank location.