Commissioning Manager

DayOne; Helsinki; On-site; EUR 50,000 - 70,000; Full time

Benefits offered by this job

Opportunity for career growth

Inclusive work environment

Global exposure in the industry

Job summary

DayOne is seeking a Commissioning Manager in Helsinki to lead the planning and execution of commissioning activities for new data center projects. This role involves close collaboration with engineering teams, contractors, and operations personnel to ensure compliance with technical standards and Finnish regulations.

The ideal candidate will possess a Bachelor's Degree in Electrical or Mechanical Engineering, several years of experience in commissioning MEP systems, and familiarity with Finnish standards. Join DayOne to help shape the future of data infrastructure.

Qualifications

• Multiple years of experience with commissioning, installation, or operations of MEP systems.
• Familiarity with Finnish electrical and safety standards (SFS/EN).
• Ability to work independently and manage multiple priorities.

Responsibilities

• Plan, coordinate, and execute commissioning activities for new data center projects.
• Ensure building systems are tested and compliant with project design.
• Prepare and maintain commissioning documentation and participate in handover.

Skills

Commissioning of MEP systems

Project management

Technical execution

Safety compliance

Problem-solving

Stakeholder management

Education

Bachelor’s Degree in Electrical or Mechanical Engineering

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 with a presence across Asia and Europe. As we expand into new international markets, we are looking for talented, driven individuals to join our team. This is an opportunity to contribute to our dynamic group and help shape the future of global data infrastructure.

What You’ll Do

As a Commissioning Manager you are responsible for planning, coordinating, and executing commissioning activities for new data center projects in Finland. This role ensures that critical building systems are thoroughly tested, integrated, and handed over to Operations in full compliance with the project design, technical standards, Finnish regulations, and safety requirements. You will work closely with internal engineering teams, contractors, vendors, and operations personnel to ensure reliable, efficient, and high-quality delivery of all MEP and control systems.

• Commissioning Planning & Coordination
• Supporting development of the Commissioning Plan, schedule, and testing protocols
• Coordinating commissioning activities with Project Management, Construction, Vendors, and Operations, ensuring alignment with project specifications, Uptime/Tier requirements, and Finnish/EU standards
• Assisting with planning FAT, SAT, functional testing, and Integrated Systems Testing (IST)
• Technical Execution
• Identifying issues, escalating deviations, and supporting root-cause analysis and corrective actions
• Maintaining accurate commissioning logs, punch lists, and test documentation
• Executing and witnessing commissioning tests across electrical, mechanical, controls, fire safety, and security systems, including:
• HV/MV/LV distribution, UPS, generators, PDUs, ATS/STS, Chillers, CRAC/CRAH, pumps, cooling towers, hydronic systems
• BMS/EPMS/BAS controls and SOO validation
• Fire detection and suppression systems
• Access control, CCTV, ICT/structured cabling readiness
• Quality, Compliance & Safety
• Ensuring commissioning activities comply with Finnish regulatory requirements, SFS/EN standards, and environmental/safety rules
• Supporting QA/QC processes to ensure equipment and systems meet design intent
• Adhering to Lockout/Tagout (LOTO) and safe energization practices, collaborating with HSE and project teams to maintain a safe, zero-harm environment
• Documentation & Handover
• Preparing and maintaining commissioning documentation including test forms, reports, red-line drawings, and O&M inputs; assist in assembling the final Commissioning Turnover Package
• Participating in formal handover meetings with Operations and Customers and supporting training activities to ensure Operations teams understand system functionality

What We’re Looking For

• Bachelor’s Degree in Electrical or Mechanical Engineering, Building Services, or equivalent
• Multiple years of experience with commissioning, installation, or operations of MEP systems, ideally in data centers, energy, industrial, or mission-critical facilities
• Experience with testing and commissioning electrical, mechanical, controls, or fire safety systems
• Familiarity with Finnish electrical and safety standards (SFS/EN)
• Ability to read and interpret SLDs, P&IDs, schematics, and technical drawings
• Ability to work independently and manage multiple priorities in a fast-paced environment
• Excellent communication and stakeholder management skills
• Proactive, solutions-oriented mindset and a collaborative working style
• Solid problem-solving skills with a practical, solutions-driven approach
• Ability to work on-site at the construction location during key commissioning phases
• Ability to travel within Finland or Europe as necessary
• Fluency in English

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

If you’re ready to grow with one of the fastest-moving companies in the data center industry, apply now and be part of our global journey.

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