Electrical Technician

DayOne Data Centers HK Limited; Hong Kong; On-site; HKD 180,000 - 300,000; Full time

Job summary

DayOne Data Centers HK Limited in Hong Kong operates a live hyperscale data centre. You will maintain and troubleshoot electrical infrastructure, working within a shift team to keep critical power systems running without interruption.

This hands-on role covers LV panels, UPS components, and power distribution, with formal safety procedures, LOTO, arc-flash protection, and thorough documentation. Candidates should have a Diploma in Electrical Engineering and be prepared for 12-hour rotating

Qualifications

• Diploma or higher in electrical engineering or building services.
• Experience with LOTO, arc-flash, and permit-to-work on energised systems.
• Cantonese for site communication; English for documentation and SOPs.

Responsibilities

• Perform electrical maintenance on LV panels, breakers, UPS components, and power distribution equipment.
• Replace electrical components and support fault investigations and troubleshooting.
• Maintain safety records and ensure compliance with MOPs/SOPs.

Skills

Electrical maintenance

LOTO procedures

Arc-flash protection

Documentation

Education

Diploma or Higher Diploma in Electrical Engineering or Building Services Engineering (IVE/VTC or equivalent)

Job description

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.

About DayOne

DayOne builds and operates hyperscale data centers across nine markets in APAC and Europe. We raised US$4.5B in Series C funding and are in active build across the region. Our Hong Kong campus sits at the centre of one of Asia-Pacific's most connected cities, a global financial hub with some of the world's densest submarine cable landings. The infrastructure here supports critical digital services that businesses and communities across the region depend on every day.

About the Role

You’ll maintain and troubleshoot the electrical infrastructure on a live hyperscale data centre site, working within a shift team responsible for keeping critical power systems running without interruption. This is hands-on work on energised, mission-critical equipment where safety discipline and accurate documentation matter as much as technical skill.

Maintenance and Inspection

• Perform electrical maintenance on LV panels, breakers, UPS auxiliary components, and power distribution equipment.


• Conduct routine inspections, document findings accurately, and elevate abnormalities to the Shift Supervisor.


• Replace electrical components including fans, fuses, sensors, indicator lights, and small control devices.

Fault Response and Troubleshooting

• Support fault investigations and troubleshooting under the direction of the site electrical engineer.


• Respond to electrical incidents including UPS alarms, breaker trips, and abnormal readings.


• Escalate faults beyond your scope promptly rather than attempting resolution independently.

Safety and Documentation

• Work to electrical safety standards at all times including LOTO, arc-flash protection, and permit-to-work requirements.


• Support implementation of MOPs, SOPs, and emergency response procedures for electrical work.


• Maintain electrical tools and PPE in serviceable condition and keep all work records complete.

Requirements

• Diploma or Higher Diploma in Electrical Engineering or Building Services Engineering (IVE/VTC or equivalent), or an EMSD-recognised trade qualification.


• Practical experience working to LOTO, arc-flash, and permit-to-work procedures on energised systems.


• Cantonese for team and contractor communication, plus working English for documentation, MOPs, and SOPs.


• Able and willing to work rotating 12-hour shifts including nights, weekends, and public holidays.

Why DayOne?

DayOne is a global data centre operator, not a contractor or an agency, and the Hong Kong campus is a permanent site with a permanent team. You’ll work on modern critical infrastructure, to standards set across nine markets, with a shift team around you and clear escalation lines. DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Locations and Market Presence

DayOne is a data center pioneer that develops and operates next-gen digital infrastructure for industry leaders who demand reliable, cost-effective and quickly scalable solutions. Our cutting-edge facilities empower hyperscalers and large enterprises to achieve rapid deployment and enhance connectivity, driving transformative engagement and innovation as we shape the future of industries. DayOne's data centers are located across key markets, including Singapore, Johor (Malaysia), Batam (Indonesia), Greater Bangkok, Hong Kong SAR, Tokyo, and beyond. Headquartered in Singapore, DayOne's leadership team draws on over two decades of industry experience and a track record of building Asia's largest data centre business. With DayOne, they have created the SIJORI (Singapore, Johor, and Riau Islands) market as a global data centre hub. As demand for strategically located and customized data centers rises, DayOne's entrepreneurial spirit, customer-first strategy, deep local partnerships, and agile executional capabilities uniquely position us to power the growth ambitions of leading hyperscalers and large enterprises around the world.