Senior Mechanical Engineer — Hyperscale Data Center Ops

DayOne Data Centers is building a flagship hyperscale campus in Lahti, Finland. We seek a Mechanical Engineer to maintain and optimize core mechanical systems, ensuring reliability and efficiency across HVAC, chillers, cooling towers and fire suppression within a data centre environment.

You will collaborate with engineers and operations to implement safety standards, perform preventive and corrective maintenance, and support strategic initiatives for scalable, cost-effective operations.