Job Description

Act as the client-side senior mechanical technician on the Tier III colocation data center. The role supervises, inspects and verifies the mechanical (HVAC, cooling, plumbing and fire-fighting piping) installation works carried out by the main contractor and its subcontractors, ensures compliance with approved drawings, specifications and Tier III requirements, supports testing & commissioning, and prepares to operate and maintain the mechanical systems after handover

Key Responsibilities

Supervise and inspect daily HVAC and mechanical works, including chillers, DX units, CRAC/CRAH, in-row cooling, pumps, piping, valves, ductwork, fans, and containment systems.

Verify installations against approved drawings, specifications, project standards, and manufacturer requirements.

Inspect piping supports, insulation, welding, brazing, refrigerant piping, condensate drainage, leak detection, and water-free zones over IT areas.

Inspect fire-fighting piping and gas suppression systems, including FM-200/Novec installations and room integrity preparations.

Witness pressure testing, flushing, chemical cleaning, TAB, equipment start-up, and commissioning activities.

Participate in Level 3–5 commissioning, including redundancy, failover, heat-load, and Integrated Systems Testing (IST).

Verify temperature and humidity performance against applicable ASHRAE recommendations.

Raise and follow up on site observations, punch-list items, and NCRs through to closure.

Review test reports, commissioning records, O&M manuals, warranties, spare-parts lists, and as-built documentation.

Support the preparation of SOPs, MOPs, EOPs, and preventive maintenance plans for mechanical and cooling systems.

Coordinate with electrical, fire, ELV, and BMS teams to ensure proper system interfaces and integration.

Monitor mechanical performance during soft opening and early operations and support troubleshooting of cooling alarms and equipment faults.

Prepare daily and weekly progress reports and participate in site coordination meetings.

Qualifications & Requirements

Diploma or B.Sc. in Mechanical Engineering, HVAC, Refrigeration, or a related discipline.

8–10 years of relevant HVAC installation, testing, commissioning, or maintenance experience.

Minimum 3 years of experience in data centers, telecom facilities, hospitals, or other mission-critical environments.

Strong hands-on experience with precision cooling systems such as Vertiv, Schneider/Uniflair, Stulz, or equivalent, as well as chillers and DX systems.

Good knowledge of HVAC testing, commissioning, TAB, BMS integration, and mechanical systems.

Ability to read and interpret mechanical drawings, specifications, and technical documentation.

Knowledge of ASHRAE standards and data center cooling requirements.

Uptime Institute ATD/AOS, CDCP/CDCT, or equivalent certification is preferred.

Refrigerant handling certification is preferred.

Strong site supervision, reporting, coordination, and problem-solving skills.