Senior Electrical Engineer

DigitalLand Services (FI) Oy; Lahti; On-site; EUR 52,000 - 76,000; Full time

Job summary

DayOne Data Centers is building a flagship hyperscale data center campus in Lahti, Finland. The Electrical Engineer will maintain and improve critical electrical infrastructure, ensuring 24/7 operation, efficiency, and compliance across power distribution, UPS, generators, and switchgear.

You will work with a multidisciplinary team to design, commission, and run advanced electrical systems in a fast-growing, international environment.

Qualifications

• Degree in Electrical Engineering or related field.
• 3–5 years of electrical engineering experience, preferably in data centres.
• Strong knowledge of electrical infrastructure: power distribution, UPS, generators, switchgear.

Responsibilities

• Manage electrical systems design, installation, operation and maintenance.
• Coordinate with vendors and contractors for electrical maintenance and upgrades.
• Provide hands-on troubleshooting to ensure minimal downtime of data centre operations.
• Uphold safety policies and regulatory compliance.
• Collaborate with other engineers and operations teams for optimal performance.

Skills

Electrical eng

Communications

English

Team collaboration

Education

Electrical Engineering degree

Tools

UPS systems

Power distribution

Switchgear

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.

Job Summary

DayOne is building its flagship hyperscale data center campus in Lahti, on a former industrial site in Kiveriö. The campus is designed to use Finland's naturally cool climate for free cooling, with air-cooled chillers that remove the need for freshwater cooling.

Join the Lahti team early and help shape how a campus of this scale is built, commissioned, and run. Electrical Engineer plays a crucial role in maintaining the electrical infrastructure and systems of our hyperscale data centres. The role involves ensuring continuous and efficient operation of all electrical systems.

Key Responsibilities

Electrical System Management

Assist in the design, installation, operation, and maintenance of electrical systems, including power distribution units, uninterruptible power supplies (UPS), generators, and switchgear. Ensure all electrical infrastructure operates efficiently, with minimal downtime, and adheres to established performance standards. Support the implementation and maintenance of electrical safety policies and best practices.

Maintenance and Upgrades

Perform preventative and corrective maintenance activities, ensuring all electrical equipment and systems are serviced according to company and manufacturer standards. Assist in coordinating with vendors and contractors during electrical maintenance and upgrade projects, ensuring minimal disruption to data centre operations. Monitor system performance and recommend improvements or upgrades as necessary.

Technical Support and Troubleshooting

Provide hands-on technical expertise to troubleshoot and resolve electrical issues in a timely manner, ensuring minimal impact on data centre operations. Collaborate with other engineering and operations teams to ensure integrated and efficient system performance. Maintain up-to-date documentation and records to support operational continuity and compliance requirements.

Safety and Compliance

Adhere to all relevant health, safety, and environmental regulations, ensuring compliance with industry standards and best practices. Participate in safety audits and contribute to the continuous improvement of safety protocols within the data centre.

Strategic Initiatives

Support the Electrical Engineering Manager and Critical Services Manager in developing and implementing strategic initiatives to enhance electrical system performance and support business growth.

Team Collaboration

Work closely with other engineers, technicians, and the Electrical Engineering Manager to ensure seamless 24/7 operations. Participate in training and development programs to enhance personal and team capabilities.

What We're Looking For

• Degree in Electrical Engineering or a related field.
• 3-5 years of experience in electrical engineering, preferably within a data centre or critical infrastructure environment.
• Strong knowledge of electrical infrastructure including power distribution, UPS systems, generators, and switchgear, and the ability to resolve complex electrical challenges.
• Effective communication skills and the ability to work effectively with a multidisciplinary team.
• Proficiency in English, both written and spoken.
• Knowledge of Finnish is a plus.
• Ability to work in a fast-paced operational environment.
• Proactive, solutions-oriented mindset with high-integrity and a collaborative working style.

Why Join DayOne?

Be a part of a company scaling fast in a booming industry. Work on an international stage with global leaders. Shape your career in a culture that values curiosity, agility, and bold thinking.

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

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 center business. With DayOne, they have created the SIJORI (Singapore, Johor, and Riau Islands) market as a global data center 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.

We'd love to get to know you! Tell us a bit about your background, experience, and what you're looking for in your next opportunity. The more we know, the better we can match you with roles that fit your goals.