WWTP Process Engineer

MENCAST OFFSHORE & MARINE PTE. LTD.; Singapore; On-site; SGD 60,000 - 80,000; Full time

Benefits offered by this job

5.5 Working Days

Medical Benefits

Shuttle bus provided

Job summary

MENCAT OFFSHORE & MARINE PTE. LTD. in Singapore is searching for a WWTP Process Engineer responsible for the operation, monitoring, and optimization of hazardous wastewater treatment processes.

The ideal candidate should possess at least a Bachelor’s degree in relevant engineering disciplines and have a minimum of 5 years of hands-on operational experience in wastewater treatment systems.

This position emphasizes technical evaluation, troubleshooting, and ensuring compliance with EHS requirements while optimizing treatment processes.

Qualifications

• Bachelor’s degree or above in relevant fields.
• Minimum 5 years of experience in industrial wastewater treatment.
• Hands-on experience in advanced oxidation processes preferred.

Responsibilities

• Operate and optimize wastewater treatment systems daily.
• Conduct technical evaluations of new wastewater streams.
• Manage system abnormalities and perform root cause analyses.
• Prepare documentation and maintain SOPs.
• Ensure compliance with safety standards and regulations.

Skills

Process evaluation

Troubleshooting

Chemical handling

Data analysis

Communication

Education

Bachelor’s degree in Environmental Engineering

Bachelor’s degree in Chemical Engineering

Bachelor’s degree in Applied Chemistry

Bachelor’s degree in Biotechnology

Job description

Highlight

• 5.5 Working Days
• Medical Benefits
• Shuttle bus provided

Position Objective and Summary

• The WWTP Process Engineer is responsible for the operation, monitoring, optimization, and continuous improvement of industrial and hazardous wastewater treatment processes at the wastewater treatment plant (WWTP).
• This role provides technical judgment, process troubleshooting, and engineering support to ensure stable compliance with discharge standards, operational efficiency, and EHS requirements.

Main tasks /Activities / Responsibilities

1. Process Operation and Optimization

• Responsible for daily operation, monitoring, and optimization of industrial and hazardous wastewater treatment systems.
• Cover key treatment units, including but not limited to:
  • Physico-chemical treatment: Lamella clarifier, DAF, CAF
  • Advanced oxidation processes (AOP): Micro-electrolysis oxidation, Fenton oxidation, electro-catalytic oxidation, catalytic ozonation, UV photocatalytic oxidation
  • Biological treatment: Anaerobic systems (e.g. UASB, CSTR), aerobic systems (activated sludge, MBR)
  • Tertiary / polishing treatment: MBR, RO
• Adjust operating parameters based on influent water quality variations (COD, BOD, SS, oil & grease, toxicity, etc.).

2. Technical Evaluation and Process Development

• Conduct technical evaluation of new incoming wastewater or waste streams and determine suitable treatment routes and pretreatment requirements.
• Plan, organize, and execute bench-scale tests (e.g. jar tests, pilot trials) to verify treatment feasibility.
• Provide technical recommendations to support operational decisions and commercial assessments.

3. Troubleshooting and Problem Solving

• Handle system abnormalities such as effluent non-compliance, biological inhibition, membrane fouling, and process instability.
• Perform root cause analysis (RCA) and propose corrective and preventive actions (CAPA).

4. Documentation and Technical Management

• Prepare, update, and maintain SOPs, process operating parameters, and technical reports.
• Guide technicians and laboratory staff on sampling, testing, and on-site process adjustments.
• Participate in government inspections, customer audits, and technical discussions.

5. Safety and Compliance

• Ensure safe operation of chemical systems, advanced oxidation units, and biological treatment processes in compliance with EHS requirements.
• Participate in risk assessments (RA) and management of change (MOC) reviews.

Job requirements (education, linguistic ability, professional experience, leadership qualities, soft skills etc.)

1. Education

• Bachelor’s degree or above.
• Major in Environmental Engineering, Chemical Engineering, Applied Chemistry, Biotechnology, or related disciplines.

2. Professional Experience

• Minimum 5 years of experience in industrial wastewater or hazardous wastewater treatment.
• Hands-on operational experience in one or more of the following systems is preferred:
  • Advanced oxidation processes (Fenton, electrochemical, ozone, UV)
  • Biological treatment systems (anaerobic + aerobic, MBR)

3. Professional Competency

• Ability to independently perform process evaluation, troubleshooting, and operating parameter optimization.
• Strong understanding of common wastewater quality parameters and their impact on treatment systems.
• Competent in bench-scale test design and data analysis.

4. Soft Skills and General Competency

• Good communication skills with operations, laboratory teams, and management.
• Strong sense of responsibility and ability to make sound technical judgments under abnormal conditions.
• Able to work in a plant-based, on-site operational environment.