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.
Responsibilities
Microsoft 365 & Hybrid Identity Administration
- Administer, maintain, and monitor Microsoft 365 services including Exchange Online, Microsoft Teams, SharePoint Online, OneDrive, and collaboration platforms.
- Troubleshoot and maintain hybrid identity and messaging architectures, including Azure AD Connect, Active Directory to Microsoft Entra ID integration, and hybrid Exchange environments.
- Configure and manage Microsoft Entra ID, Conditional Access, Single Sign-On (SSO), and Multi-Factor Authentication (MFA).
- Manage Application Registrations and Enterprise Applications in Microsoft Entra ID, including API permissions and service principals.
- Support Information Protection, Data Loss Prevention (DLP), Data Governance, and Compliance configurations in Microsoft 365.
- Manage user identities, groups, roles, and access permissions in Active Directory and Microsoft Entra ID.
- Support identity lifecycle management, including user provisioning, deprovisioning, and role-based access control (RBAC).
- Maintain technical documentation, operational procedures, and knowledge sharing for Microsoft collaboration tools.
- Develop and maintain Power Automate workflows to support IT and business process automation.
Azure Cloud & Infrastructure Administration
- Deploy, configure, and manage Microsoft Azure infrastructure and platform services (Compute, Storage, Networking, Security, and SaaS).
- Configure Azure resources to meet performance, security, and business requirements.
- Manage Azure subscriptions, resource groups, governance policies, and tenant configurations.
- Support hybrid cloud integration between on-premises infrastructure and Azure.
- Monitor system availability and performance using Azure Monitor and logging tools.
Multi-Cloud Administration
- Support and maintain multi-cloud environments, including Google Cloud Platform (GCP), Alibaba Cloud (AliCloud), Amazon Web Services (AWS), and DigitalOcean.
Domain, DNS & SSL Management
- Manage and support domain services and DNS resolution across on-premises and cloud environments.
- Manage SSL/TLS certificate operations, including configuration, renewal monitoring, and troubleshooting certificate-related technical issues.
- Ensure reliable domain routing and name resolution for enterprise applications and cloud services.
Experience & Technical Skills
- 3–5 years of experience in cloud engineering, system administration, or IT infrastructure roles.
- Experience with hybrid identity environments (Active Directory, Azure AD Connect, Microsoft Entra ID).
- Experience supporting multi-cloud platforms (Azure, AWS, GCP, AliCloud, DigitalOcean).
- Basic to intermediate experience in PowerShell scripting and automation.
- Experience supporting Microsoft 365 and cloud-based enterprise services.
Qualifications
Certifications (Preferred)
- Microsoft Azure Administrator (AZ-104)
- Microsoft 365 Fundamentals (MS-900) or Microsoft 365 Administrator certifications
- AWS / GCP certifications are an advantage
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
- 3-5 years of experience in cloud engineering, system administration, or IT infrastructure roles.
- Experience with hybrid identity environments (Active Directory, Azure AD Connect, Microsoft Entra ID).
- Experience supporting multi-cloud platforms (Azure, AWS, GCP, AliCloud, DigitalOcean).
- Experience supporting Microsoft 365 services (Exchange Online, Teams, SharePoint Online, OneDrive).
- Basic to intermediate experience in PowerShell scripting and automation.
- Experience deploying and managing Azure infrastructure, subscriptions, resource groups, and governance policies.
- Experience with Azure Monitor and logging tools for availability and performance monitoring.
- Experience managing domain services, DNS resolution, and SSL/TLS certificate operations.
- Experience developing and maintaining Power Automate workflows for IT and business process automation.
- Microsoft Azure Administrator (AZ-104) certification.
- Microsoft 365 Fundamentals (MS-900) or Microsoft 365 Administrator certification.
- AWS or GCP certifications (advantage).
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.
