Mechanical Technician – Maintenance & Critical Response (MCR)

Join DayOne – Shaping the Future of Data Infrastructure

DayOne is a global leader in the development and operation of high-performance data centers. As one of the fastest-growing companies in the industry, we’ve built a robust presence across Asia and Europe — and we’re just getting started.

As we expand into new international markets, we’re looking for talented, driven individuals to join us on this exciting journey. This is more than a job — it’s an opportunity to be a key contributor to our dynamic team and help shape the future of global data infrastructure.

If you're passionate about innovation, technology, and growth, we invite you to be part of DayOne’s next chapter.

Mechanical Technician – Maintenance & Critical Response (MCR)

Reporting to: Mechanical Engineer

Location: Chonburi

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 Technician is responsible for performing routine and corrective mechanical maintenance activities across the data centre, including CHW systems, FWU/CRAC units, CDU, pumps, valves, motors, and related mechanical infrastructure. The role supports troubleshooting, repair, inspections, and safe execution of mechanical tasks to ensure optimal system reliability and uptime.

Key Responsibilities

• Perform mechanical maintenance on pumps, motors, valves, FWU/CRAH units, heat exchangers, and other mechanical systems.
• Conduct troubleshooting and repair under supervision, including component replacement.
• Support chilled water system troubleshooting/ restoration activities.
• Assist in developing and following MOPs, SOPs, and safety procedures for mechanical work.
• Conduct routine mechanical inspections and identify abnormal equipment conditions.
• Support emergency response during cooling or mechanical incidents.
• Maintain proper documentation, update maintenance logs, and comply with operational standards.
• Ensure adherence to safety practices including LOTO, chemical handling procedures.

Candidate Requirements

• Technical Certificate / Diploma in Mechanical, HVAC, or M&E Engineering.
• 1–3 years hands-on experience in mechanical maintenance, HVAC systems, or industrial environments.
• Understanding of pump systems, valves, motors, and HVAC equipment.
• Knowledge of workplace safety and mechanical isolation procedures.
• Ability to follow instructions, perform hands-on mechanical work, and support engineers.
• 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.