Wintel Engineer

INFINITE COMPUTER SOLUTIONS PTE LTD; Singapore; On-site; SGD 60,000 - 100,000; Full time

Job summary

Infinite Computer Solutions Pte Ltd in Singapore is seeking a hands-on IT administrator to manage Windows Server environments (2012/2016/2019/2022) and maintain directory services. You will administer Active Directory, configure GPOs, oversee DNS and DHCP, monitor replication, and keep systems patched and secure.

Experience with PowerShell scripting and Azure AD/Entra ID integration is a plus to automate tasks and strengthen identity management.

Tools

Windows Server

Active Directory

Group Policy Objects

DNS

DHCP

PowerShell

Azure AD

Entra ID

Job description

Responsibilities

• Administer Windows Server environments (2012/2016/2019/2022) to ensure stable and secure operations
• Manage Active Directory (AD) including user, group, and organizational unit (OU) administration to maintain directory integrity
• Configure and maintain Group Policy Objects (GPO) to enforce security and operational policies across the network
• Oversee DNS and DHCP services to ensure reliable network name resolution and IP address management
• Monitor and troubleshoot AD replication issues to maintain directory synchronization and availability
• Perform Windows patching and server maintenance to keep systems updated and secure
• Develop and execute PowerShell scripts to automate routine administrative tasks and improve efficiency
• Manage Azure AD / Entra ID environments to support cloud identity and access management (if applicable)
• Implement identity and access management controls to safeguard user authentication and authorization