Senior Engineer, Commissioning (Ultrapure Water Systems)

Gradiant; Chennai District; On-site; INR 1,800,000 - 2,600,000; Full time

Job summary

Gradiant India Private Limited in Chennai, India, seeks a Senior Engineer to lead commissioning of Ultra Pure Water systems, ensuring design, installation, testing and operation meet project specs and industry standards.

You will plan procedures, supervise a team, coordinate with vendors and clients, perform pre-commissioning and startup activities, and document results for handover to operations.

Qualifications

• Bachelor's degree in Chemical, Mechanical, or Environmental Engineering.
• 8–15 years of experience in water treatment or UPW systems.
• Experience with commissioning large-scale UPW plants and multi-disciplinary coordination.

Responsibilities

• Plan, execute, and manage UPW commissioning to meet specs.
• Review P&IDs, PFDs, and control philosophies.
• Coordinate with engineering, construction, vendors, and client teams.
• Perform pre-commissioning checks and start-up activities.
• Ensure HSE compliance during commissioning.

Skills

UPW technologies

Instrumentation

Leadership

Stakeholder coordination

Troubleshooting

Education

Bachelor’s Degree in Chemical/Mechanical/Environmental Engineering

Tools

MS Office

SCADA/PLC interfaces

Document control platforms

Job description

Senior Engineer, Commissioning (Ultrapure Water Systems)

Gradiant India Private Limited / Chennai, India

Posting Start Date: 8/27/26

Date format: mm/dd/yy

Function: 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 world’s essential industries, including semiconductors, pharmaceuticals, food & beverage, lithium and critical minerals, and renewable energy. Gradiant’s 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

Responsible for planning, executing, and managing the commissioning of Ultra Pure Water (UPW) systems to ensure systems are designed, installed, tested, and operated in compliance with project specifications, process requirements, and industry standards.

Responsibilities

Commissioning Planning & Preparation

• Review design documents including P&IDs, Process Flow Diagrams (PFDs), specifications, and control philosophy.
• Develop commissioning procedures, checklists, and method statements.
• Participate in HAZOP, risk assessments, and constructability reviews.
• Coordinate with engineering, construction, vendors, and client teams.

Pre-Commissioning Activities

• Verify mechanical completion of systems (MC checks, punch list closure).
• Perform line checks, flushing, cleaning, and passivation activities.
• Ensure proper installation and alignment of equipment such as: Pretreatment Units, RO Units (Multi-pass systems), EDI (Electrodeionization), Ion Exchange Units, Degasifiers / Membrane contactors, UV Units (TOC reduction & sterilization), Filters (UF, cartridge filters), Chemical dosing systems.

Commissioning Execution

• Perform functional testing and loop checking (instruments, control valves, analyzers).
• Commission PLC/SCADA/DCS systems in coordination with automation team.
• Start-up and stabilize UPW system to achieve required quality parameters: Resistivity (≥18.2 MΩ·cm), TOC levels, Silica removal, Dissolved oxygen
• Troubleshoot system performance issues.

Performance Testing & Validation

• Conduct performance test runs and demonstrate system capacity and efficiency.
• Support validation activities (IQ, OQ, PQ – especially in pharma projects).
• Ensure compliance with standards: SEMI standards (for semiconductor), ASTM / USP / cGMP (for pharma applications)

Documentation & Handover

• Prepare commissioning dossiers and reports.
• Update as-built documentation.
• Ensure completion of: Test records, Calibration reports, SOPs and O&M Manuals
• Support final handover to operations team.

Health, Safety & Environment (HSE)

• Enforce safety procedures and permit-to-work systems.
• Identify and mitigate risks during commissioning activities.
• Ensure compliance with site HSE policies.

Requirements

• Strong knowledge of UPW process technologies: Reverse Osmosis (RO – multi-pass), EDI systems, UF systems, Degassing systems, Chemical dosing (SMBS, NaOH, acid systems)
• Experience with instrumentation: Conductivity/resistivity analyzers, TOC analyzers, Flow, pressure, and level transmitters, Familiarity with automation systems (PLC/DCS/SCADA)
• Systematic commissioning workflow, Troubleshooting and root cause analysis, Vendor coordination and FAT/SAT involvement
• Strong communication and stakeholder coordination, Leadership and team supervision, Problem-solving and decision-making under pressure
• Bachelor’s Degree in: Chemical Engineering / Mechanical Engineering / Environmental Engineering.
• Professional certifications (preferred): Commissioning certifications, Safety certifications (e.g., NEBOSH)
• 8–15 years of experience in water treatment / UPW systems.
• Proven experience in commissioning large-scale UPW plants.
• Experience in industries such as: Semiconductor manufacturing, Pharmaceuticals, Electronics / Data centers
• Willingness to travel or work at remote project locations
• Strong coordination with multinational teams and vendors

Tools & Software

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

  Work Location

  Sites across India

  Equal Opportunity Statement

  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.