WWTP Operator

The Arnott's Group; Bekasi; On-site; IDR 60,000,000 - 90,000,000; Full time

Job summary

PT Arnott's Indonesia in Bekasi is seeking a dedicated WWTP Operator to join our team. This full-time role will operate, monitor, and maintain the wastewater treatment plant, ensuring safe and compliant operations.

You will conduct routine lab tests, manage chemical dosing, and perform inspections to keep plant performance high. Candidates should have 1–3 years of WWTP experience and a relevant technical education. Certification is preferred.

Qualifications

• SMA/SMK or technical school graduate in Chemical, Mechanical, or Environmental Engineering.
• 1–3 years of experience operating industrial or municipal WWTP.
• Certified Wastewater Treatment Plant Operator preferred (e.g., BNSP).

Responsibilities

• Operate, monitor, and control WWTP equipment such as pumps, aerators, and dosing systems.
• Conduct routine plant inspections to ensure equipment and treatment systems run efficiently.
• Monitor process parameters and adjust operations to maintain optimal performance.
• Perform water sampling and routine laboratory tests to verify quality.
• Maintain clean and safe WWTP facilities and assist with safety compliance.

Skills

Wastewater treatment knowledge

Laboratory testing

HMI systems

Safety compliance

Shift work

Education

Senior High School or Technical School

Job description

PT Arnott's Indonesia is a multinational company with brands Good Time and Nyam Nyam. We are looking for a WWTP Operator to join our team. This role is Full-Time based in Bekasi.

Responsibilities:

WWTP Operation & Facility

• Operate, monitor, and control wastewater treatment plant (WWTP) equipment, including pumps, aerators, blowers, clarifiers, filter presses, and chemical dosing systems.
• Conduct routine plant inspections to ensure equipment, piping, and treatment systems are operating efficiently.
• Monitor WWTP operational parameters through supervisory control systems and manual gauges to maintain optimal plant performance.

Chemical Management & Water Testing

• Perform routine laboratory testing, including pH, COD, TSS, DO, and jar tests, to monitor water quality throughout the treatment process.
• Calculate and adjust chemical dosages to ensure effective wastewater treatment and compliance with operational standards.
• Handle, store, and replenish treatment chemicals safely in accordance with Material Safety Data Sheets (MSDS/SDS).
• Conduct water sampling and ensure treated water meets environmental and regulatory requirements.

Maintenance & Troubleshooting

• Carry out preventive maintenance on WWTP equipment and facilities to ensure reliable operation.
• Troubleshoot mechanical, electrical, and process-related issues, escalating major breakdowns to the Maintenance or Engineering team when required.
• Support sludge handling, hazardous waste management, and maintain cleanliness of the WWTP facility in compliance with safety and environmental standards.

Reporting & Compliance

• Maintain accurate daily operational records, including plant performance, laboratory test results, chemical consumption, and maintenance activities.
• Ensure WWTP operations comply with company standards and applicable environmental regulations.

Ingredients you will need to be successful in this role:

• Minimum Senior High School (SMA/SMK) or Technical School graduate, preferably in Chemical, Mechanical, or Environmental Engineering.
• Minimum 1–3 years of experience operating industrial or municipal wastewater treatment plants.
• Certified Wastewater Treatment Plant Operator (e.g., BNSP Operator IPAL/PPPA certification) is highly preferred.
• Good understanding of physical, chemical, and biological wastewater treatment processes.
• Ability to perform basic laboratory water quality testing.
• Familiar with HMI systems, plumbing, and basic mechanical/electrical troubleshooting.
• Experience operating biological wastewater treatment systems is an advantage.
• Physically fit and able to work in outdoor environments, confined spaces, at heights, and handle chemical materials safely.
• Willing to work on a shift schedule, including weekends and public holidays when required.

So, if you're passionate about environmental sustainability and ready to contribute to safe and efficient wastewater treatment operations, this is the right opportunity for you!