Senior Operations Engineer

Barrington James; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Barrington James is seeking a Senior Operation Engineer for a Global Energy MNC client to lead a team in a large-scale chilled water plant.

You will supervise maintenance, coordinate contractors, troubleshoot HVAC/ACMV systems, and push energy efficiency through CMMS-driven planning while ensuring safety and reliability. Requirements include a Diploma or Degree in Mechanical, Electrical, or Building Services Engineering and 5–10 years of O&M experience in large chilled water plants.

Qualifications

• Diploma or degree in Mechanical, Electrical, or Building Services Engineering.
• 5–10 years of experience in O&M of large-scale chilled water plants.
• Hands-on experience with chilled water systems in commercial, industrial, or utility environments.
• Strong knowledge of AHU/FCU and chilled water distribution to airside systems.
• Ability to troubleshoot HVAC and ACMV system faults independently.
• Excellent safety mindset and customer-facing communication.

Responsibilities

• Lead and supervise technicians and manage contractors for maintenance activities.
• Operate and optimize large-scale chilled water plants and HVAC systems; troubleshoot and monitor performance.
• Plan and execute CMMS-based work orders for AHU/FCU and distribution systems.
• Develop work plans, select contractors, and schedule maintenance with cost considerations.
• Respond to faults, alarms, and root-cause analysis; ensure availability and energy efficiency.
• Coordinate with vendors and OEMs for safe, effective maintenance.
• Prepare monthly operational reporting and documentation.

Skills

Team leadership

Contractor management

O&M experience

Troubleshooting

Energy optimization

HVAC systems

AHU/FCU knowledge

Education

Diploma or Degree in Mechanical, Electrical, or Building Services Engineering

Tools

CMMS

Job description

I am currently looking for a Senior Operation Engineer for one of my Global Energy MNC client. This is an exciting opportunity to lead a team in a large-scale chilled water plant.

Title: Senior Operation Engineer

Type: Full time employment

Job Description

• Lead and supervise a group of technicians and manage contractors in the execution of maintenance activities to ensure operational reliability and compliance with safety requirements.
• Manage and support the day-to-day operation of large-scale chilled water plants and HVAC systems, including troubleshooting, performance monitoring, and energy optimization. Prior experience in District Cooling System (DCS) operations is preferred.
• Plan, coordinate, and execute using CMMS for AHU, FCU and associated chilled water system.
• Develop and implement work plans, including purchase requisitions, selection/evaluation of contractors, as well as maintenance activities scheduling and costing.
• Perform frontline troubleshooting of airside systems, including: Air Handling Units (AHU) / Fan Coil Units (FCU). Associated chilled water control valves, actuators, sensors, pumps, VSDs etc
• Attend to operational faults, customer complaints, alarms, and system abnormalities, and carry out root cause analysis where required.
• Ensure system availability, reliability, energy efficiency and service delivery targets are achieved.
• Arrange, supervise, and follow up on corrective maintenance and breakdown works.
• Liaise and coordinate with vendors, contractors, and OEMs to ensure maintenance and repair works are carried out safely and effectively.
• Act as frontline technical support to customers, attending site meetings and address operational and air conditioning related issues.
• Review vendor service and maintenance reports and escalate any recurring or critical issues.
• Support implementation of energy efficient operating practices during daily operations.
• Ensure all works are carried out in accordance with company safety procedures and requirement.
• Prepare monthly operational reporting, efficiency reports and documentation as required

Requirements

• Diploma or Degree in Mechanical, Electrical, or Building Services Engineering.
• 5 to 10 years of relevant experience in O&M of large scaled chilled water plants.
• Hands on experience with Chilled water systems in commercial, industrial, or utility environments.
• Good practical knowledge of chilled water distribution to airside systems.
• Able to troubleshoot HVAC and ACMV system faults independently.
• Comfortable working frontline with customers and site stakeholder.
• Strong safety mindset and proactive approach to problem solving