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. Reporting to the Critical Services Manager, the Maintenance Planner is responsible for overseeing all maintenance aspects of data centre operations to achieve 100% uptime and compliance with our customers. This role involves working closely with a team of engineers, technicians, and third-party vendors to plan and manage the annual Planned Preventative Maintenance (PPM) schedule. Additionally, the Maintenance Planner must adjust plans as necessary to support unplanned emergency maintenance and break fix activities, ensuring minimal disruption and maximum efficiency in data centre operations. RESPONSIBILITIES Maintenance and Upgrades: Plan and coordinate asset management services including asset management delivery planning, preventative and corrective maintenance activities planning, condition monitoring and lifecycle planning. Ensure all systems are serviced according to manufacturer and company standards. Coordinate with vendors and contractors for maintenance and upgrade projects, ensuring minimal impact on operations. Follow up on Change Management approval. Prepare and update the 52 week maintenance plan. Ensure data completeness in CMMS system, including maintenance reports, faults, asset information, spare parts etc. Safety and Compliance: Ensure all maintenance activities comply with relevant health, safety, and environmental regulations. Maintain up-to-date documentation and records to support compliance audits and certifications. System Support: Utilise the CMMS system including records management and planning. Collaborate with other engineering and operations teams to ensure integrated and efficient system performance. Strategic Initiatives: Support the Critical Services Manager in reporting requirements. Participate in budget planning and cost management activities to ensure operational efficiency and financial performance. CANDIDATE REQUIREMENTS: Bachelor’s degree in engineering, computer science, business administration or a related field. Minimum of 3-5 years of experience in maintenance planning, ideally in a critical environment or data centre. Strong experience in the use of Computerised Maintenance Management Systems. Proven experience in managing technical teams and 24/7 operations. Excellent problem-solving skills and the ability to manage complex challenges. High level of attention to detail and accuracy in documentation and analysis. Strong communication and interpersonal skills, with the ability to collaborate effectively with multiple stakeholders. Flexibility to manage changing priorities and work in a fast-paced, dynamic environment. 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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9 Jan, 2026

Dayone

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