Assistant Project Manager

DayOne; Indonesia; On-site; IDR 60,000,000 - 90,000,000; Full time

Job summary

DayOne seeks an Assistant Project Manager to oversee the full MEP construction lifecycle for data centers, coordinating with site teams and contractors to ensure on-time handover of reliable facilities.

The role requires 10+ years in construction PM, strong knowledge of HVAC, electrical, fire protection and plumbing, IST testing, and CAPEX planning, with an engineering degree. This is an on-site position based in Indonesia, offering growth within a global data-center group.

Qualifications

• 10+ years in construction project management, data center experience preferred.
• Strong knowledge of HVAC, power systems, fire protection and plumbing.
• Expertise in MEP systems, local authority approvals and IST testing/commissioning.
• CAPEX planning, cost estimation and total cost of ownership for M&E in data centers.
• Engineering degree in Mechanical or Electrical or related field.
• Proficiency with project management tools and MS Office; strong organizational skills.
• Fluent in English; APAC language skills are a plus.

Responsibilities

• Oversee the entire MEP construction lifecycle from planning to handover.
• Coordinate with site teams and contractors; manage budgets and schedules.
• Lead MEP contract negotiations and track amendments with stakeholders.
• Collaborate with external consultants for design and systems coordination.
• Ensure safety compliance and regulatory permitting on site.
• Drive continuous improvement and quality assurance across projects.

Skills

Project management

MEP coordination

Contract negotiations

Budget management

Stakeholder management

Safety compliance

IST testing

CAPEX planning

MS Project

Time management

Education

Engineering degree

Data center experience

Tools

MS Project

MS Office

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.

POSITION OVERVIEW

The Assistant Project Manager oversees the comprehensive lifecycle of MEP construction projects, ensuring efficient project planning, execution, and handover. This role requires expertise in managing mechanical and electrical systems, coordinating with site teams and contractors, and maintaining effective communication with all stakeholders to meet project objectives.

RESPONSIBILITIES

• Project Management & Leadership: Oversee the entire MEP construction lifecycle, including planning, execution, and handover phases. Coordinate with site and contractor teams to ensure timely completion of M&E project milestones. Identify and mitigate project risks, ensuring clear communication of updates on schedules, budgets, and technical issues to stakeholders.
• Contract & Financial Management: Lead MEP specific contract negotiations and oversee amendments with architects, consultants, and subcontractors. Evaluate MEP construction methods for cost-effectiveness, monitor budget adherence, and produce regular progress and financial reports.
• Stakeholder & Contractor Relations: Manage relationships with key stakeholders, including contractors, consultants, and relevant authorities, ensuring adherence to project standards. Provide support to local teams on customer discussions regarding M&E project progress and any technical challenges.
• Design & Systems Coordination: Collaborate closely with external consultants to ensure effective design and construction of MEP systems within data centers, covering HVAC, electrical distribution, fire protection, plumbing and other critical infrastructure. Ensure the successful handover of MEP systems to operational teams, addressing any outstanding issues or deficiencies.
• Safety & Compliance: Lead safety initiatives on-site, ensuring full compliance with MEP regulations and industry standards. Oversee adherence to all relevant permitting and government authority requirements for MEP projects.
• Continuous Improvement & Quality Assurance: Promote a culture of continuous improvement and collaboration within the project team. Implement advanced project management and quality control techniques to optimize M&E project outcomes.

QUALIFICATIONS

• 10+ years of experience in construction project management within the MEPor engineering field; additional experience in data center projects is highly preferred.
• Proven experience in delivering large-scale MEP projects, with strong knowledge of HVAC, power systems, fire protection and plumbing.
• Expertise in MEP systems, local authority approval processes, and testing and commissioning of critical infrastructure in data centers, including Integrated Systems Testing (IST).
• Solid understanding of CAPEX planning, cost estimation, and total cost of ownership (TCO) for M&E systems in data centers.
• Engineering degree in Mechanical, Electrical, or related field.
• Proficiency in project management tools, MS Project, and MS Office, with excellent organizational and time-management skills.
• Demonstrates initiative, collaboration, and resilience under pressure.
• Fluent in English (written and spoken); additional languages in the APAC region are advantageous.

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

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.