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.
About DayOne
DayOne builds and operates hyperscale data centers across eight markets in APAC and Europe. We raised US$4.5B in Series C funding and are in active build across the region. As we scale across jurisdictions and prepare for the scrutiny that comes with that growth, the internal controls function becomes one of the most consequential in the business — this role sits at the center of that.
About the Role
This is a genuine second line of defence role — independent, evidence-based, and with direct access to senior leadership and governance committees. You'll own operational control reviews across DayOne's data center sites, assess whether controls work in practice rather than just on paper, and hold findings with enough rigor to defend them in front of external auditors and certification bodies. If you're looking for a controls role where your output influences real operational decisions at scale, the scope here is real.
LoD2 Audit and Control Testing
- Plan and execute independent operational control reviews across data center processes including facility operations, change management, incident management, physical access, vendor management, and capacity planning.
- Design and conduct control testing programs to assess both design adequacy and operational effectiveness across multiple sites and entities.
- Document findings with root cause analysis and risk ratings that are well-evidenced and defensible — not just descriptive.
- Issue findings reports and track remediation actions through to verified closure.
Process Assurance and Risk Monitoring
- Maintain a risk-based view of control effectiveness across data center entities, updating the control risk register as the environment and findings evolve.
- Conduct walkthroughs, interviews, and document reviews to assess whether operational procedures reflect actual practice on the ground.
- Identify systemic or cross-site control weaknesses and escalate patterns — not just individual findings.
- Support the development of Key Risk Indicators and Key Control Indicators relevant to data center operations.
Stakeholder Engagement and Reporting
- Work with operational leads, site managers, and process owners to gather evidence, agree on findings, and set realistic remediation timelines — while maintaining LoD2 independence throughout.
- Liaise with external auditors, ISO certification bodies, and regulatory reviewers as a credible point of contact for internal controls matters.
- Prepare control assessment reports for senior management and governance committees covering findings, risk exposure, and remediation status.
Requirements
Technical Skills
5 to 7 years of experience in internal audit, internal controls, operational risk, or process assurance.
Prior experience in a data center, technology infrastructure, or complex operational environment — this is required, not preferred.
Solid understanding of operational control frameworks and process assurance methodologies with the ability to independently design and execute control tests from scoping through to findings and reporting.
Familiarity with data center operational processes including power, cooling, connectivity, change management, physical access, and vendor oversight.
Working knowledge of ISO 9001 or hands-on QA audit experience is an advantage. Exposure to ISO/IEC 27001 or ISO 22301 is valued.
Bachelor's degree in Accounting, Finance, Business, Engineering, or a related discipline.
Soft Skills
Reaches independent conclusions based on evidence and defends findings under pressure from senior stakeholders without adjusting the finding to reduce friction.
Produces written reports that are specific, actionable, and legible to both technical and non-technical audiences.
Manages multiple audit workstreams simultaneously without losing rigor or documentation discipline.
Nice to Have
CIA (Certified Internal Auditor).
CDCP or CDCS certification.
ISO 9001 Lead Auditor or equivalent QA audit qualification.
ISO/IEC 27001 Lead Auditor.
Why DayOne?
DayOne is scaling fast across eight markets — which means the control environment is getting more complex, not less. This role has genuine scope: you'll work across multiple sites and jurisdictions, engage directly with external auditors and certification bodies, and produce findings that reach governance committees. For a controls professional who wants their work to carry weight rather than sit in a drawer, the platform here is the right size at the right moment.
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.
Skills Required
- 5 to 7 years experience in internal audit, internal controls, operational risk, or process assurance.
- Prior experience in a data center, technology infrastructure, or complex operational environment.
- Ability to design and execute operational control tests from scoping through findings and reporting.
- Familiarity with data center operational processes: power, cooling, connectivity, change management, physical access, vendor oversight.
- Working knowledge of ISO 9001 or hands-on QA audit experience.
- Exposure to ISO/IEC 27001 or ISO 22301.
- Bachelor's degree in Accounting, Finance, Business, Engineering, or related discipline.
- Ability to reach independent, evidence-based conclusions and defend findings to senior stakeholders.
- Strong written reporting skills for technical and non-technical audiences.
- Ability to manage multiple audit workstreams with documentation discipline.
- CIA, CDCP/CDCS, ISO Lead Auditor certifications (nice to have).
What We Do
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.
