Data Center Mechanical Engineer (Cooling Systems)

About the role

The Infrastructure team delivers managed services and solutions for the group's internet infrastructure, including data centers, connectivity, cloud, networking, servers, storage, software, platforms and security. As a Data Center Mechanical Engineer in the Data Center Engineering team, you will work with engineers and technologists to support the design, review, delivery and operation of reliable, energy-efficient data center mechanical and cooling infrastructure. The role covers cooling system design verification, technical assessment of colocation solutions, cooling optimisation and advanced cooling technologies such as liquid cooling, and takes part in testing and commissioning.

Key responsibilities

• Support the development and review of mechanical design criteria, calculations, drawings, specifications, equipment schedules and technical submissions.
• Review cooling systems (chilled-water plants, chillers, cooling towers, pumps, FWUs, CRAHs, HAC/CAC) and assess capacity, redundancy, hydraulics, energy efficiency and maintainability.
• Support airflow management, CFD simulation reviews and thermal performance assessments.
• Assist in reviewing liquid-cooling systems (TCS, CDUs, FWS interfaces, piping, monitoring and leak detection).
• Verify cooling infrastructure against approved designs, tenders and technical requirements, including resilience and performance under normal and failure conditions.
• Evaluate tender submissions, colocation proposals, equipment specs, design changes and value-engineering proposals.
• Coordinate with colocation providers, consultants, contractors, vendors and operations teams on technical queries and design deviations.
• Participate in FAT, SAT, installation inspections, testing and commissioning, and IST; review commissioning procedures, test results, defects and non-conformances.
• Build familiarity with Singapore codes and standards, support regulatory compliance checks and assist in project handover and documentation reviews.

Required profile

• Bachelor's degree in Mechanical Engineering, Building Services Engineering or a related discipline.
• At least 2 years of experience in mechanical engineering design, HVAC systems, building services consultancy, mission-critical infrastructure or data center projects.
• Experience with a mechanical / M&E design consultancy is strongly preferred; candidates with solid HVAC fundamentals and project exposure are encouraged to apply.
• Willingness to attend project sites, technical inspections and testing in Southeast Asia and, where required, elsewhere in the region.

Required skills

• Fundamental knowledge of data center cooling design and chilled-water systems, chillers, cooling towers, pumps, FWUs, CRAHs and data hall cooling.
• Knowledge of mechanical drawings, schematics, equipment schedules, technical specifications, redundancy and energy efficiency.
• Advantageous: exposure to high-density or liquid cooling, Singapore building codes (BCA, SCDF, PUB, NEA), ASHRAE and GMDC requirements, and certifications such as CDCP, CDCS or Uptime Institute ATD/ATS.
• Advantageous: AutoCAD, Revit, CFD software or other mechanical design tools.