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 DayOneDayOne builds and operates hyperscale data centers across seven markets in APAC and Europe. We raised US$4.5B in Series C funding, and we're building the internal functions to match that scale. Most of what you'll work on here doesn't have a template yet. The processes, the systems, the ways of working: a significant amount of it still needs to be built by the people in these roles.
About The Role
The Senior Tax Manager is responsible for leading and managing tax workstreams relating to new market entry, new projects, joint venture, mergers and acquisitions (M&A), divestments, and corporate restructuring initiatives across multiple jurisdictions in Asia, Europe and South America The role focuses on tax due diligence, transaction execution, restructuring implementation, and post-deal integration, ensuring tax risks are identified, managed, and appropriately documented in accordance with applicable tax laws and regulatory requirements.
1. New Market Entry, New Projects, Joint ventures and Merger & Acquisition Tax Due Diligence & Post Deal Integration
- Lead and manage tax due diligence processes across multiple jurisdictions in Asia, Europe and Latin America.
- Provide technical tax input on new market entries, new projects and legal entities set up, acquisitions, disposals, and investment transactions, including SPA review
- Work out and implement mitigation plans of tax risks and exposures identified during due diligence, in the post deal integration phase.
- Maintain documentation of post-transaction tax positions and assumptions
2. Corporate Structuring
- Support expansion plans and advise most appropriate legal structure in new markets/ventures for tax optimization purposes.
- Lead tax workstreams for group structuring exercises
- Evaluate all tax implications arising from asset transfers, share transfers, and business organizations.
- Support review of transaction documents to ensure tax positions are appropriately reflected and protected
- Coordinate with legal and finance teams to ensure seamless execution of structuring and/or post deal integration initiatives
Requirements
- Degree in Accounting, Finance, Tax, or Law
- Minimum 10 years of relevant experience in deal advisory with regional or global exposure
- Strong analytical capability with ability to assess tax risks and implications across jurisdictions
- Ability to translate complex technical tax concepts into practical business and deal insights
- Strong project management skills and ability to manage multiple concurrent workstreams and strong communication skills for cross-functional projects
Qualifications
- Professional qualification (e.g. CPA, ACCA, CTA or equivalent) preferred
Why DayOne?
If you've spent your career executing inside a function someone else built, this is a different kind of job. DayOne is at the stage where the people joining now get to define how things are done and not inherit a system and maintain it. That's genuinely rare at a company operating at this scale. The work is complex, the pace is real, and the decisions you make will still be visible five years from now.
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
- Minimum 10 years of relevant experience in deal advisory with regional or global exposure
- Experience leading tax due diligence, transaction execution, restructuring implementation, and post-deal integration
- Experience advising on new market entry, entity setup, joint ventures, acquisitions and disposals (including SPA review)
- Knowledge of cross-border tax implications across Asia, Europe and Latin America
- Ability to assess and mitigate tax risks and document post-transaction tax positions
- Strong analytical skills and ability to translate complex tax concepts into practical business and deal insights
- Strong project management skills; ability to manage multiple concurrent workstreams
- Strong communication skills for cross-functional collaboration with legal and finance teams
- Degree in Accounting, Finance, Tax, or Law
- Professional qualification (e.g., CPA, ACCA, CTA or equivalent)
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.
