About DayOne Data Centers DayOne Data Centers is a Singapore-headquartered global digital infrastructure platform that develops and operates next-generation data centers across Asia Pacific and Europe. Trusted by leading hyperscalers and businesses, the company engineers, builds, and operates high-capacity, AI-ready campuses with speed, scale, and reliability. About DayOne Data Centers DayOne Data Centers is a Singapore-headquartered global digital infrastructure platform that develops and operates next-generation data centers across Asia Pacific and Europe. Trusted by leading hyperscalers and businesses, the company engineers, builds, and operates high-capacity, AI-ready campuses with speed, scale, and reliability. In Japan, our growing platform includes the 80MW Fuchu Intelligent Park hyperscale campus in Tokyo, as well as a newly announced 200MW data center campus in Imari City, Saga Prefecture. Together, these developments reflect our long-term commitment to one of the world's most important digital infrastructure markets and support Japan’s next phase of digital growth. As we continue to grow, we are building a team of talented professionals who want to shape the next generation of digital infrastructure. Joining DayOne means becoming part of a high-growth, international organization that is helping power the future of cloud, AI, and the digital economy. POSITION OVERVIEW Reporting to the Cluster Operations Manager, the Critical Services Manager is responsible for overseeing the Mechanical, Electrical, and Building Management System (BMS) engineering teams, as well as managing the 24/7 shift team to ensure uninterrupted operations of the data centre. This role requires a highly skilled professional with a strong background in data centre infrastructure, exceptional leadership abilities, and a commitment to maintaining Service Level Agreement (SLA) compliance RESPONSIBILITIES Leadership and Management: - Lead, mentor, and develop the mechanical, electrical, and BMS engineering teams to ensure high performance and professional growth. - Oversee the 24/7 shift team, ensuring effective communication and coordination to maintain continuous operations. Operational Excellence: - Ensure the efficient and reliable operation of all critical systems, including HVAC, electrical distribution, generators, UPS, and BMS. - Develop and implement standard operating procedures (SOPs) for maintenance and emergency response. - Monitor system performance and implement improvements to enhance reliability and efficiency. undefined SLA Compliance: - Ensure all operations and maintenance activities are conducted in compliance with SLAs. - Develop and track key performance indicators (KPIs) to measure compliance and performance. - Address and resolve any issues that could impact SLA compliance promptly. Project Management: - Manage and oversee critical infrastructure projects, including upgrades, expansions, and maintenance. - Coordinate with internal teams and external contractors to ensure projects are completed on time, within scope, and budget. Safety and Compliance: - Ensure all operations adhere to safety protocols and regulatory standards. - Conduct regular safety audits and drills to ensure team readiness for emergency situations. - Maintain documentation and records in compliance with regulatory and company requirements. Budget Management: - Develop and manage the budget for the critical services department. - Monitor expenditures and implement cost-saving measures without compromising service quality. Continuous Improvement: - Foster a culture of continuous improvement by encouraging innovation and process enhancements. - Stay updated with the latest industry trends and technologies to implement best practices. CANDIDATE REQUIREMENTS: Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or a related field. Advanced degree preferred. Minimum of 7-10 years of experience in data centre operations or a similar critical infrastructure environment, with at least 3-5 years in a managerial role. Proven experience in managing multidisciplinary engineering teams. Strong knowledge of HVAC, electrical systems, generators, UPS, and BMS. Excellent leadership, communication, and interpersonal skills. Ability to work under pressure and manage multiple priorities. Strong analytical and problem-solving abilities. Familiarity with industry standards and regulatory requirements. Certification in data centre management (e.g., CDCP, CDCS) is a plus. Business level or above in both Japanese and English DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. 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 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. We’d love to get to know you! Tell us a bit about your background, experience, and what you're looking for in your next opportunity. The more we know, the better we can match you with roles that fit your goals. Let’s start with: - Your professional background, upload a copy of your latest resume. - Key skills and strengths - Career interests and goals This is your moment — make it count!

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