Follow instructions from the person in charge to unload incoming ISO tank / Vacuum truck / IBCs. Handle loading of RFO to flexibags / Tank Trucks / IBCs. Perform jetty operation, including vessel berthing and marine loading. Conduct oily water pre-treatment. Perform tank to tank transfer operations. Follow instructions from the person in charge to prepare the daily incoming wastewater. Prepare and dose chemicals for wastewater treatment as instructed. Monitor the condition of SBR process, OWWTP, all equipment, and tank levels, and promptly report any abnormalities to the person in charge. Clear the filter press when full and maintain the housekeeping. Uphold good housekeeping practices at the SLOP plant. Submit Daily task reports to SLOP Superintendent and Supervisor. Requirement Physically fit and willing to learn the operation Understand and write basic English Minimum 1 years'experience in operation