Commissioning Engineer / Senior Commissioning Engineer

Gradiant International Holdings Pte. Ltd.; Singapore; On-site; SGD 50,000 - 70,000; Full time

Job summary

A leading company in water treatment seeks motivated Commissioning Engineers for projects in Industrial and Municipal Water & Wastewater Treatment. This role offers diverse project opportunities and a platform for professional growth in a dynamic environment. The position starts as a 1-year contract with strong potential for renewal.

Qualifications

• Hands-on experience with Reverse Osmosis, MBR, and sludge handling systems.
• Familiarity with pumps, blowers, and heat exchangers.

Responsibilities

• Carry out pre-commissioning and performance testing activities.
• Support documentation and liaise with clients for commissioning signoffs.

Skills

Water/Wastewater Process Knowledge

Mechanical Systems Commissioning

Process & Chemical Handling

Software & Communication

Tools

Microsoft Office

Job description

About us

Gradiant is a global solutions provider for advanced water and wastewater treatment. We are a different kind of water company. With a full suite of differentiated and proprietary end-to-end solutions, powered by the top minds in water, the company serves its clients' mission-critical operations in the world's essential industries. 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 1,000 employees worldwide. Singapore is our Regional Headquarters and home to our Global Innovation Center. Learn more at gradiant.com

About the role

We are seeking motivated and hands-on Commissioning Engineers to join our team for projects in Industrial and Municipal Water & Wastewater Treatment, including Ultrapure Water (UPW) and Desalination Plants. The role offers opportunities to work on diverse projects, take ownership of commissioning scopes, and collaborate with cross-functional teams.

Whether you're early in your commissioning career or bring several years of experience, this role provides a platform to grow technically and professionally in a dynamic field environment. This role will start with 1-year contract role with strong potential for renewal and conversion to a permanent position

Responsibilities

• Carry out pre-commissioning, wet commissioning, and performance testing activities for Water and Wastewater Treatment Plants.

• Assist or lead in plant start-up, troubleshooting, and optimization depending on experience level.

• Support documentation, testing, and handover processes.

• Participate in the review of P&IDs, PFDs, design documents, and control logic (e.g., Cause & Effect Matrix).

• Support or lead the development of commissioning plans, checklists, procedures, and O&M manuals.

• Work closely with Mechanical, Electrical, and Instrumentation & Control teams to ensure installation aligns with design intent.

• Prepare or contribute to daily, weekly, and monthly progress reports.

• Assist in preparing commissioning logs and punch lists and track their closure.

• Support or lead data collection, performance analysis, and issue resolution.

• Provide feedback to design and construction teams to close out any functional or design issues.

• Participate in Site Acceptance Tests and Performance Testing.

• Support project documentation and liaise with clients to achieve commissioning signoffs.

Requirement

Water/Wastewater Process Knowledge

• Exposure to or hands-on experience with:

  • Reverse Osmosis (RO), UF, MBR, MBBR, DAF, Clarifiers, Ammonia

  • Sludge handling systems: Filter Press, Centrifuge, Crystallizers, Evaporators

Mechanical Systems Commissioning

• Familiarity with commissioning and operation of:

  • Pumps (Process & Chemical Dosing), Blowers, Mixers, Compressors

  • Heat exchangers, chemical dosing systems, and polymer prep units

Process & Chemical Handling

• Understanding of coagulation and flocculation principles

• Knowledge of chemical handling and dosing systems

Software & Communication

• Proficient in Microsoft Office tools (Excel, Word, PowerPoint, Project)

• Clear, professional communication in English (written and spoken)

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.