Hyperscale Data Center Electrical Engineer (24/7 Ops)

DayOne Data Centers Ltd.; Lahti; Hybrid; EUR 60,000 - 80,000; Full time

Job summary

DayOne Data Centers Ltd. is building its flagship hyperscale data center campus in Lahti, Finland, and seeks a Senior Electrical Engineer to maintain and optimize critical electrical systems for continuous operations.

You will design, install, operate, and maintain electrical infrastructure including PDU, UPS, generators, and switchgear, ensuring safety and reliability across a high-availability environment.

Qualifications

• Degree in Electrical Engineering or related field.
• 3–5 years of electrical engineering experience, data centre preferred.
• Strong knowledge of power distribution, UPS, generators, switchgear.
• Excellent communication and teamwork; English required; Finnish a plus.

Responsibilities

• Assist in design, installation, operation, and maintenance of electrical systems for the data center.
• Maintain power distribution units, UPS, generators, and switchgear to minimize downtime.
• Enforce electrical safety policies and best practices.
• Coordinate with vendors and contractors during maintenance and upgrades.
• Provide hands-on troubleshooting to ensure uptime.
• Support safety audits and compliance documentation.

Skills

Electrical engineering

Power systems

Team collaboration

English communication

Education

Bachelor's degree in Electrical Engineering

Job description

DayOne Data Centers Ltd. is building its flagship hyperscale data center campus in Lahti, Finland, and seeks a Senior Electrical Engineer to maintain and optimize critical electrical systems for continuous operations.

You will design, install, operate, and maintain electrical infrastructure including PDU, UPS, generators, and switchgear, ensuring safety and reliability across a high-availability environment.