Commissioning Manager

Overview

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.

Job Description

DayOne is a global leader in the development and operation of high-performance data centers, and one of the fastest-growing companies in the industry, with a strong presence across Asia and Europe. As we continue our exciting expansion into new international markets, we are seeking talented individuals who are passionate about joining us on this growth journey. This is an excellent opportunity to become a key member of our dynamic team and play an integral role in our rapid expansion!

Job Summary:

We are seeking an accomplished Commissioning Manager to lead and oversee the commissioning function across one or more complex data center construction projects. This role requires deep technical expertise, leadership across cross-functional teams, and a strong focus on quality, risk management, and client satisfaction. The successful candidate will ensure the successful delivery of mission-critical infrastructure, from pre-design through integrated systems testing and handover.

Key Responsibilities

• Lead the commissioning strategy and execution for multiple concurrent or large-scale data center projects.
• Define and standardize commissioning processes, tools, and best practices across the project portfolio.
• Act as the senior technical authority for all commissioning activities.
• Oversee commissioning teams, third-party agents, OEMs, and contractors during commissioning lifecycle.
• Provide governance, review, and sign-off on commissioning plans, schedules, and protocols.
• Interface with clients, consultants, and internal stakeholders at senior levels, ensuring expectations are aligned and met.
• Manage and mentor a team of Commissioning Managers, Engineers, and Technicians.
• Plan and allocate resources efficiently across multiple project sites.
• Support hiring, training, and performance management of commissioning personnel.
• Establish KPIs and ensure delivery meets or exceeds design intent, performance, and uptime requirements.
• Lead risk reviews and ensure mitigation plans are in place for high-impact systems or stages (e.g., IST).
• Ensure full compliance with codes, standards, and client-specific requirements (ASHRAE, Uptime Tier Guidelines, LEED, ISO, etc.)
• Lead the execution and review of:
• Factory Acceptance Testing (FAT)
• Site Acceptance Testing (SAT)
• Integrated Systems Testing (IST)
• Oversee final documentation, commissioning reports, redlines, and turnover packages.
• Ensure successful handover to operations teams and facilitate knowledge transfer sessions.
• Electrical: UPS systems, MV/LV Switchgear, Generators, PDUs, ATS/STS, Busways
• Mechanical: Chillers, CRAHs, Cooling Towers, Pumps, HVAC Controls
• Controls: BMS, EPMS, SCADA, Fire Detection & Suppression Systems
• Other Critical Systems: Life safety, structured cabling infrastructure

Strategic Leadership

Project Oversight

Team & Resource Management

Quality, Risk, & Compliance

Testing & Turnover

Core Systems Overseen: