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.

Senior Construction Manager, CSA

Chonburi, Thailand | On-Site | Permanent

About DayOne

DayOne builds and operates hyperscale data centers across nine markets in APAC and Europe. We raised US$4.5B in Series C funding and are in active build across the region. In Chonburi, we are developing one of Southeast Asia's most significant greenfield data center campuses on a path to Thailand's first 1GW platform. The CSA scope on this build is central to everything.

About The Role

You'll own the civil, structural, and architectural construction scope on a live hyperscale data center project in Chonburi — from design coordination and installation oversight through to first-of-kind sign-off, QA/QC, and handover. This is a technically demanding, hands-on role. You'll be expected to speak fluently to the specifics of your own project experience, not describe it in general terms.

Design and Planning

Review and provide technical input to CSA design plans, specifications, and drawings, ensuring compliance with applicable codes and regulations.
Coordinate with architects, engineers, and consultants to integrate CSA requirements into overall facility design.

Construction Oversight

Manage installation and construction of CSA systems on site, ensuring adherence to design specifications and safety standards.
Conduct site inspections to monitor progress, resolve issues, and verify quality of installations.
Manage contractors, subcontractors, and suppliers — coordinate schedules and resolve conflicts to keep the CSA program on track.

Reporting and Program Control

Prepare weekly and monthly programme updates including high-level milestone tracking, S-curve reports, and Earned Value Management analysis against plan.
Prepare reports on project progress, delays, and defects, along with supporting technical analysis.

First-of-Kind, QA/QC, and Handover

Review and sign off on first-of-kind works, mock-ups, and CSA inspections to confirm proper functionality and performance.
Coordinate QA/QC verification and defects clearance with contractors and stakeholders before handover.
Troubleshoot and resolve operational issues arising during construction and handover phases.

Requirements

Technical Skills

Minimum 10 years of experience in CSA construction management, preferably in data center or comparable mission-critical environments.
Demonstrated, specific experience with facade, architectural openings, waterproofing, and interior finishes including walls, floors, and ceilings — candidates should be able to speak to their own project scope in detail.
Direct experience preparing and reviewing S-curve reports and Earned Value Management analysis.
Direct experience with first-of-kind and mock-up review, QA/QC verification, and defects clearance processes on an active construction site.
Proficiency in AutoCAD or Revit. Familiarity with BIM tools is an advantage.
Diploma or Bachelor's degree in Civil Engineering or a related field.
English and Thai required for site-level coordination and local authority engagement.

Soft Skills

Discusses their own CSA project experience with enough technical specificity to be assessed against real scope, not general project management language.
Manages multiple contractors and trades simultaneously without losing oversight of quality or program.
Identifies and escalates technical and program risks early, before they affect the broader construction schedule.

Nice to Have

Data center or mission-critical project experience specifically.
Familiarity with CONQUAS or an equivalent QA framework.
Proficiency with MS Project, Primavera, or Power BI for program reporting.

Why DayOne

The Chonburi campus is one of the most significant data center builds in Southeast Asia right now, and CSA is central to it. You'll have full workstream ownership on a hyperscale facility, work alongside a multinational team operating to international standards, and deliver infrastructure that will run for decades. DayOne is a well-funded company at an active growth stage — the people who build well here build their careers here too.

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.