IT Service Engineer (System Administrator)

PERSOL; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

PERSOL is seeking an experienced IT Systems Officer to manage and support the Microsoft 365 environment, IT infrastructure, and end-user computing services in Singapore. The role focuses on secure, reliable IT operations and providing technical support across the business.

Responsibilities include administering Exchange Online/Teams/OneDrive, managing AD and security policies, implementing MFA and Defender, maintaining network/firewall/VPN, and delivering desktop support for Windows and Office.

Qualifications

• Diploma or Degree in Computer Science, Information Technology, or a related discipline.
• Minimum 3 to 5 years of experience in IT infrastructure, systems administration, or cybersecurity support.
• Hands-on experience administering Microsoft 365 environments, including Exchange Online, Teams, and OneDrive.
• Good knowledge of Active Directory, networking, firewalls, VPNs, and endpoint management.
• Familiarity with Microsoft 365 security technologies such as MFA, Conditional Access, Defender, and DLP.

Responsibilities

• Administer, configure, and support Microsoft 365 services, including Exchange Online, Teams, and OneDrive
• Manage Active Directory user accounts, access controls, and security policies
• Implement and maintain Microsoft 365 security and compliance solutions, including MFA, Conditional Access, Microsoft Defender, and DLP
• Support and maintain network infrastructure, firewalls, and VPN connectivity
• Provide desktop and end-user support for Windows devices, Microsoft Office applications, printers, and peripherals
• Monitor, troubleshoot, and optimize server, network, and endpoint performance
• Support Microsoft 365 deployments, migrations, and tenant administration activities

Skills

Microsoft 365 administration

Active Directory

Networking basics

End-user support

Education

Diploma or Degree in Computer Science/IT

Tools

Exchange Online

Teams

OneDrive

Microsoft Defender

MFA

Conditional Access

DLP

Job description

About the role

We are seeking an experienced IT Systems Officer to manage and support the organization's Microsoft 365 environment, IT infrastructure, and end-user computing services. The successful candidate will play a key role in maintaining secure, reliable, and efficient IT operations while providing technical support across the business.

Key responsibilities

• Administer, configure, and support Microsoft 365 services, including Exchange Online, Teams, and OneDrive

• Manage Active Directory user accounts, access controls, and security policies

• Implement and maintain Microsoft 365 security and compliance solutions, including MFA, Conditional Access, Microsoft Defender, and DLP

• Support and maintain network infrastructure, firewalls, and VPN connectivity

• Provide desktop and end-user support for Windows devices, Microsoft Office applications, printers, and peripherals

• Monitor, troubleshoot, and optimize server, network, and endpoint performance

• Support Microsoft 365 deployments, migrations, and tenant administration activities

About you

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

• Minimum 3 to 5 years of experience in IT infrastructure, systems administration, or cybersecurity support

• Hands-on experience administering Microsoft 365 environments, including Exchange Online, Teams, and OneDrive

• Good knowledge of Active Directory, networking, firewalls, VPNs, and endpoint management

• Familiarity with Microsoft 365 security technologies such as MFA, Conditional Access, Defender, and DLP