Senior Commissioning Engineer

DayOne; Singapore; On-site; SGD 180,000 - 300,000; Full time

Job summary

DayOne is a global leader in developing and operating high-performance data centers, headquartered in Singapore with a regional footprint across Asia. We seek a seasoned Testing & Commissioning Leader to manage multi-discipline teams and drive project readiness from design review to operational handover.

You will develop commissioning strategies, create IST procedures, coordinate with regional directors, ensure safety compliance, and maintain timelines and budgets across data center projects

Qualifications

• Bachelor’s degree in electrical or mechanical engineering.
• 7–10 years in data center testing, commissioning, and operations.
• Solid data center infrastructure knowledge (HVAC, power, network).
• Proficiency with testing/commissioning software & tools.
• Strong project management and multi-project handling.
• Excellent communication and client-facing skills; travel as needed.

Responsibilities

• Lead and manage a team of testing and commissioning engineers and contractors.
• Develop and implement testing and commissioning strategies.
• Ensure safety and compliance with MOS/MOPs, SOO, Risk Assessments, LOTO.
• Coordinate interfaces among Electrical, Mechanical, BMS/EPMS, Fire, Security, Controls.
• Review test plans, reports, and commissioning docs.
• Serve as primary client contact during testing and commissioning.
• Travel within the region as required.

Skills

Project management

Communication skills

Team leadership

Data center knowledge

Travel readiness

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. 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.

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

Responsibilities

• Team Leadership:
• Lead and manage a team of testing and commissioning agent’s engineers, technicians and contractors throughout the project lifecycle, from design review through project handover and operational readiness.
• Provide technical guidance and support to the team to ensure successful project completion.
• Drive safety culture and ensure all commissioning activities comply with approved MOS/MOPs, SOO, Risk Assessments, and LOTO procedures.
• Strategy Development:
• Support the Testing & Commissioning Manager/ PM/ SPM to develop and implement effective testing and commissioning strategies, plans and schedules.
• Lead for the development of commissioning scripts, IST procedures, energization plans, and operational readiness plans.
• Coordinate closely with the SE Asia Testing & Commissioning Director/ PM/ SPM to align regional strategies with local execution.
• Identify commissioning risks early and implement mitigation measures.
• Project Oversight:
• Directly manage and plan the testing and commissioning process from Cx Level 1 to Cx Level 6 for all data center projects involved.
• Manage interfaces between Electrical, Mechanical, BMS/EPMS, Fire Protection, Security, and Controls systems.
• Collaborate with project managers, construction teams, design team, resource team, account delivery management team, commissioning agents and clients to ensure project timelines and budgets are adhered to.
• Conduct regular site visits during construction stages to monitor progress, quality, and compliance with industry standards.
• Manage commissioning meetings and technical workshops.
• To be full time on site during all testing and commissioning process.
• Protocol Enforcement:
• Ensure adherence of testing and commissioning protocols and compliance with company commissioning frameworks, industry standards, safety regulations, and client requirements.
• Documentation and Reporting:
• Review and approve test plans, reports, and commissioning documentation.
• Client collaboration:
• Serve as the primary point of contact for clients during the testing and commissioning phase.
• Manage commissioning punch lists, root cause analysis, resolution of technical commissioning issues and ensure timely close-out.
• Coordinate consultants, contractors, OEM vendors, contractors and operations teams to resolve any complex technical issues that arise, ensuring client satisfaction.

Candidate Requirements

• Bachelor’s degree in electrical engineering, Mechanical Engineering, or a related field.
• Minimum of 7-10 years of experience in data center testing, commissioning, and operations.
• Good knowledge of data center infrastructure, including HVAC, power systems, and network operations.
• Proficiency in relevant software and tools used in the testing and commissioning process.
• Excellent project management skills, capable of managing multiple projects simultaneously.
• Exceptional communication and interpersonal skills, with the ability to interact effectively with clients, stakeholders, and team members.
• Relevant certifications in procurement, supply chain management, or contract management (e.g., CPM, CSCP).
• Proactive and self-motivated, with a focus on continuous improvement and operational excellence.
• Willingness to travel within the region as required.

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.