Electrical Design Manager

DayOne; Helsinki; On-site; EUR 90,000 - 130,000; Full time

Job summary

DayOne is seeking an Electrical Design Manager to lead the electrical design of mission-critical data center projects. You will oversee utility connections, power distribution, backup power, earthing, lighting and related electrical systems, ensuring safety, reliability and energy-conscious integration with overall infrastructure.

You will collaborate with internal teams, consultants, contractors, vendors, utilities and regulators to deliver coordinated, compliant, and high-quality design

Qualifications

• Degree in Engineering.
• Experience in electrical design for data centers or critical infrastructure.
• Knowledge of IEC, EN and local regulations; NEC knowledge is a plus.
• Experience managing and coordinating complex design workstreams.
• Experience in fast-growing, international environments.
• Willingness to work on-site and travel.
• Excellent verbal and written communication in English (Finnish is an asset).

Responsibilities

• Lead the electrical design of data center projects (utility intake, substation, transformers, switchgear, UPS, generators, distribution, earthing, lighting).
• Coordinate with internal teams, consultants, contractors, vendors, utilities, authorities and ops stakeholders.
• Provide technical leadership to ensure reliability, redundancy, safety and maintainability of electrical systems.
• Review drawings, calculations, diagrams, schedules and studies for completeness and constructability.
• Coordinate equipment reviews with vendors/contractors aligned with project needs and lifecycle.
• Support construction, commissioning and handover activities for electrical systems.

Skills

Analytical skills

Problem solving

Communication skills

Education

Engineering degree

Job description

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.

What You’ll Do

As an Electrical Design Manager, you are responsible for leading the electrical design of mission‑critical data center projects, including utility connections, power distribution, backup power, earthing, lighting and related building electrical systems. You will ensure electrical systems are safe, reliable, scalable, maintainable, energy‑conscious and well-integrated with the wider data center infrastructure.

You will work closely with different internal teams, local consultants, contractors, vendors, utility providers, authorities and operations stakeholders to deliver coordinated, compliant and high-quality design solutions. You’ll play a key role in ensuring DayOne’s electrical infrastructure meets company standards, applicable European and local regulations, authority requirements, industry best practice and end‑user expectations.

• Electrical Design Oversight: Leading and managing the electrical design process for data center projects, including utility intake, substations, transformers, switchgear, UPS, generators, power distribution, busway, earthing, lighting and related electrical systems.
• Power Infrastructure Planning: Overseeing the design of MV/LV distribution, backup power systems, redundancy arrangements, power pathways, equipment layouts, load requirements and future expansion capacity.
• Standards and Compliance: Applying DayOne’s in‑house electrical standards, design principles and lessons learned, while ensuring designs meet applicable industry standards, local regulations, authority requirements, project specifications and end‑user expectations.
• Systems Integration: Coordinating electrical interfaces with mechanical, architectural, civil, structural, fire protection, ELV/ICT, BMS/EPMS/DCIM, security, operations, commissioning and construction requirements.
• Technical Leadership: Providing technical guidance on electrical systems to support reliability, redundancy, safety, maintainability, scalability, operational readiness and project delivery requirements.
• Design Review and Quality Assurance: Reviewing drawings, specifications, calculations, single‑line diagrams, equipment schedules, system architecture diagrams, technical studies and proposals to verify completeness, coordination, technical accuracy and constructability.
• Vendor and Consultant Coordination: Working with consultants, contractors, vendors and suppliers to review and select electrical equipment, systems, materials and technical solutions aligned with project needs and lifecycle expectations.
• Construction, Commissioning and Handover Support: Supporting technical issue resolution, installation coordination, testing, commissioning, as‑built review, documentation checks and handover activities for electrical systems.

What We’re Looking For

• Degree in Engineering
• Experience in electrical design, with a strong focus on data center or similar critical infrastructure projects.
• Expertise and strong understanding of electrical systems for data centers, including power distribution, backup power, resilience, redundancy and electrical infrastructure integration.
• In‑depth knowledge of electrical codes and standards, including IEC, EN and applicable local regulations. Familiarity with NEC is a plus.
• Experience in managing and coordinating complex design workstreams, with strong organizational, coordination and leadership skills.
• Strong analytical and problem‑solving abilities, with a proven track record of addressing and resolving technical challenges.
• Previous experience working in fast‑growing, international environments.
• Ability to work on‑site and travel as needed.
• Excellent verbal and written communication skills in English. Finnish or other languages are considered an asset.

Why join DayOne?

• Be 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.