Senior Engineer, Commissioning (ETP-ZLD Systems)

Senior Engineer, Commissioning (ETP-ZLD Systems) Gradiant India Private Limited Chennai, India 6/2/26 Project Management
Gradiant is a Different Kind of Water Company. With a full suite of differentiated and proprietary end-to-end solutions for advanced water and wastewater treatment powered by the top minds in water, the company serves its clients mission-critical operations in the worlds essential industries, including semiconductors, pharmaceuticals, food & beverage, lithium and critical minerals, and renewable energy. Gradiants innovative solutions reduce water used and wastewater discharged, reclaim valuable resources, and renew wastewater into freshwater. The Boston-headquartered company was founded at MIT and has over 1,400 employees worldwide.
Discover us at www.gradiant.com.
Job Overview
To lead and execute commissioning, start-up, and performance optimization of Effluent Treatment Plant (ETP) and Zero Liquid Discharge (ZLD) systems, ensuring compliance with project specifications, environmental regulations, and performance guarantees.
Responsibilities

• Plan, coordinate, and execute pre-commissioning, commissioning, and start-up activities for ETP and ZLD systems
• Review design documents including P&IDs, control philosophy, datasheets, and layouts for commissioning readiness
• Develop commissioning procedures, method statements, and checklists
• Supervise system flushing, chemical cleaning, leak testing, and equipment integrity checks
• Perform functional testing and trial runs of key equipment such as pumps, blowers, membranes, evaporators (MEE/MVRE), and dryers (ATFD)
• Validate control systems including PLC/SCADA logic, interlocks, alarms, and automation sequences
• Identify and troubleshoot process, mechanical, and control issues during commissioning and start-up
• 
  Optimize system performance to achieve design parameters such as recovery, rejection rates, and ZLD compliance
• Coordinate with engineering, construction, vendors, and client teams for smooth project execution
• Ensure adherence to HSE standards and environmental regulatory requirements
• Prepare Commissioning Procedures, commissioning reports, performance test reports, O&M Manual and system documentation
• Conduct training for plant operators and hand over systems to operations team.
  

Requirements

• Strong knowledge of ETP & ZLD technologies : Physico-chemical treatment systems, Biological treatment processes, UF and RO systems, Multiple Effect Evaporators (MEE), MVRE, Agitated Thin Film Dryers (ATFD) / Crystallizers, Sludge dewatering systems, Chemical dosing systems
• Familiarity with instrumentation : pH, ORP, conductivity, and turbidity analyzers, Flow, pressure, and level transmitters
• Basic understanding of PLC/DCS/SCADA systems, Structured commissioning approach and execution
• Troubleshooting and root cause analysis, Vendor coordination and FAT/SAT participation
• Effective communication and coordination skills, Leadership and team supervision, Analytical problem-solving and decision-making
• Bachelors Degree in Chemical / Mechanical / Environmental Engineering or related field

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• Typically 8–15 years of experience in commissioning of water, wastewater, or ZLD systems
• Strong knowledge of RO, UF, and thermal evaporation processes (MEE/MVRE/ATFD)
• Experience in industrial sectors such as oil & gas, petrochemical, power, or semiconductor preferred
• Strong coordination with multidisciplinary and multinational teams
  

Tools & Software

• MS Office (Word, Excel, Project)
• Commissioning management systems
• SCADA/PLC interfaces
• Document control systems
  

Work Location : Sites across India
Gradiant is an equal opportunity employer. Qualified applicants will be considered without regard to race, color, religion, creed, gender, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class.