Senior Enterprise Infrastructure & Networking Engineer

MSI GLOBAL PRIVATE LIMITED; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

MSI GLOBAL PRIVATE LIMITED in Singapore seeks an experienced Microsoft Infrastructure & Identity Administrator to manage Windows Server, AD, and 365 services across production environments.

You will handle network, virtualization, storage, backup, security, and incident management while developing automation scripts to improve operations. The role requires strong collaboration with partners and a focus on reliability.

Qualifications

• Diploma or Degree in IT or related field.
• Minimum 5 years of hands-on Microsoft infrastructure and network operations.
• Experience supporting production environments and resolving complex infrastructure issues.
• Strong expertise in Windows Server, Active Directory, and related services.

Responsibilities

• Administer, maintain, and support Microsoft infrastructure and identity services.
• Manage and secure AD, Entra ID, Office 365 apps, and device management.
• Oversee network, virtualization, storage, backup, and disaster recovery readiness.
• Perform patching, security hardening, and vulnerability remediation.
• Handle incident management, root-cause analysis, and vendor escalations.
• Develop automation scripts (PowerShell, Python) to streamline admin tasks.
• Maintain architecture diagrams, SOPs, and asset inventories.

Skills

Windows Server Administration

Active Directory & Group Policy

DNS & DHCP

Microsoft Entra ID

Entra Connect

Microsoft 365 Administration

Intune

Exchange Online

Teams / SharePoint Online / OneDrive

WSUS / Patch Management

Hyper-V

PowerShell Scripting

Network Operations (LAN/WAN, TCP/IP)

Firewall & VPN Technologies

IT Security & Compliance

Education

Diploma or Degree in Information Technology, Computer Science, Computer Engineering, Information Systems, or a related discipline

Tools

VMware ESXi

vCenter

Hyper-V

PowerShell

Job description

MSI GLOBAL PRIVATE LIMITED in Singapore seeks an experienced Microsoft Infrastructure & Identity Administrator to manage Windows Server, AD, and 365 services across production environments.

You will handle network, virtualization, storage, backup, security, and incident management while developing automation scripts to improve operations. The role requires strong collaboration with partners and a focus on reliability.