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About the Role
We are seeking a seasoned Data Center Commissioning Manager to lead the technical verification and operational readiness of our hyperscale facilities. This role is pivotal in ensuring that all MEP systems perform according to design intent, safety standards, and client expectations.
Responsibilities
- Lead, plan, and execute end-to-end commissioning (Cx) activities for hyperscale data center projects.
- Directly manage and mentor the Commissioning Authority (CxA), ensuring all deliverables strictly adhere to client standards and corporate quality systems.
- Rigorously review, approve, and oversee the execution of all on-site Functional Performance Testing (FPT) scripts.
- Ensure testing procedures are precise and that results accurately reflect system performance while fully aligning with project design specifications.
- Develop and enforce strict commissioning schedules, ensuring all critical milestones are achieved on time to meet corporate project delivery deadlines.
- Proactively identify potential schedule delay risks and formulate effective mitigation and corrective action plans.
- Serve as the Technical Lead for the commissioning team, providing deep technical guidance and support.
- Maintain close communication and collaboration with Project Management, General Contractors, Equipment Vendors, and End-Clients to remove technical roadblocks and ensure on-time project delivery.
- Establish and enforce standardized commissioning test procedures and Safety Protocols (SOPs).
- Ensure all commissioning activities are conducted safely and compliantly, targeting zero incidents and high-quality delivery.
Requirements
- Bachelor’s Degree in Electrical or Mechanical Engineering or related fields.
- 7–10 years of proven, hands-on experience specifically in data center or mission critical facility testing and commissioning.
- Deep domain expertise in power systems (UPS, Generators, Switchgear), HVAC, and network operations.
- Demonstrated experience managing teams and balancing multiple large-scale projects simultaneously.
- Ability to translate complex technical issues into clear, concise language for clients and stakeholders.
- Excellent verbal and written communication skills in both Japanese and English.
- In-depth understanding of the Japanese business and regulatory environment.
- Proactive mindset with a willingness to travel regionally between construction sites as needed.
- Professional certifications (like PMP, CDCP, CSCP, CPP, or equivalent professional certification) will help you stand out.
Skills
- Commissioning (Cx)
- Functional Performance Testing (FPT)
- MEP systems
- Power systems (UPS, Generators, Switchgear)
- HVAC
- Network operations
- Project Management
- Quality Assurance
- Safety Protocols (SOPs)
- Japanese
- English
Location
- Tokyo, Japan
Work Type
- Full-time
- Onsite
Experience Level
- 7-10 years
Education Level
- Bachelor’s Degree in Electrical or Mechanical Engineering or related fields
About the Company
- 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.
- DayOne builds data centers that power every app, AI tool, and connected experience.
- We are developing an 80MW hyperscale campus at Fuchu Intelligent Park, 30 kilometres west of central Tokyo, set to be among the largest IT capacity deployments in the city when it opens in 2028.
- Backed by US$4.5B+ in Series C funding and operating across seven countries, our entry into Japan is a long-term commitment built on precision and reliability.
- At DayOne Japan, technical excellence is the foundation everything is built on.
- We are building here for the long term and growing the people who will carry that forward.
Equal Opportunity
- DayOne is proud to be an equal opportunity employer.
- We celebrate diversity and are committed to creating an inclusive environment for all employees.