MCR Mechanical Engineering Manager

About DayOne Data Centers

DayOne Data Centers is a Singapore-headquartered global digital infrastructure platform that develops and operates next-generation data centers across Asia Pacific and Europe. Trusted by leading hyperscalers and businesses, the company engineers, builds, and operates high-capacity, AI-ready campuses with speed, scale, and reliability.

Position Overview

The MCR Team is a specialised, in-house engineering organisation designed to provide rapid response, advanced troubleshooting, and self-perform maintenance for mission-critical systems across the data centre portfolio.

The Mechanical Engineer is responsible for overseeing and performing mechanical maintenance, troubleshooting, and repair activities across mission-critical mechanical systems in the data centre. This includes chilled water systems, FWU/CRAC equipment, CDU, pumps, valves, motors, heat exchangers, and other HVAC/mechanical infrastructure. The Mechanical Engineer ensures safe execution of work, restoration of system functionality, and compliance with operational and safety standards, supporting site reliability and uptime.

Key Responsibilities

• Perform mechanical maintenance, troubleshooting, and component replacement on CHW systems, pumps, motors, valves, FWU/CRAC equipment, and related mechanical systems.

• Diagnose mechanical faults and conduct repair works on chillers, heat exchangers, CDU units, VFD-driven equipment, and mechanical control devices.

• Assist in developing MOPs and SOPs for mechanical maintenance and ensuring all works are carried out safely and accurately.

• Supervise mechanical technicians and ensure safe and proper execution of mechanical tasks.

• Review maintenance quality, verify safety permits, and ensure accuracy of mechanical documentation and reporting.

• Support emergency response during cooling or mechanical-related incidents and assist in system stabilisation and recovery.

• Conduct routine mechanical inspections, identify risks, and raise early warnings to prevent system failure.

• Ensure compliance with statutory requirements, internal standards, and maintenance logs, and keep mechanical service records up to date.

• Candidate Requirements

• Diploma/Degree in Mechanical Engineering or related discipline.

• 3+ years hands-on experience in mechanical maintenance within data centres, critical facilities, or industrial mechanical systems.

• Strong understanding of CHW systems, FWU/CRAC equipment, pumps, valves, motors, CDU, heat exchangers, etc.

• Ability to supervise and guide mechanical technicians during maintenance and repair works.

• Good knowledge of safety practices including LOTO, chemical handling, and mechanical isolation procedures.

• Proven experience in troubleshooting mechanical systems and implementing effective repair solutions.

• Ability to work under pressure during critical incidents.

• Willing to be on call 24 X 7

• DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

• If you're ready to grow with one of the fastest-moving companies in the data center industry, apply now and be part of our global journey.