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Computer Systems Administrator

Starhub Ltd.

D14 Geylang, EunosPermanentS$4,000 – S$5,200/mo

Posted 23 Jul 2026

About this role

Responsibilities Administer and manage Microsoft Exchange Online, Microsoft Entra ID (Azure AD), Active Directory, and Microsoft 365 services for staff, students, shared mailboxes, and generic accounts. Manage cloud-based messaging services and collaborate with vendors on Microsoft 365, Active Directory, Exchange Online, and email-related services. Manage staff and student account provisioning through the Account Provisioning System (APS), including Hire, Rehire, Transfer, and Termination processes, ensuring timely account creation, modification, and deprovisioning. Work closely with vendors to analyse, test, and implement APS enhancements, change requests, bug fixes, and system improvements. Administer Microsoft Authenticator and Multi-Factor Authentication (MFA), including supporting MFA registration, troubleshooting, and implementation of self-service MFA reset solutions. Manage staff and student account provisioning, shared mailbox administration, distribution groups, Microsoft 365 licensing, and access management. Troubleshoot Microsoft 365, Exchange Online, mail routing, authentication, and account-related issues, including Symantec Messaging Gateway (SMG) mail relay services. Coordinate with Microsoft Support and third-party vendors to investigate, troubleshoot, and resolve technical incidents and service requests. Perform system administration tasks including monitoring, housekeeping, reporting, logging, and operational maintenance to ensure service availability and compliance. Support administration of email security services, including antivirus, antispam, content filtering, attachment whitelisting, and email gateway configurations. Manage Exchange Online organization certificates and maintain scheduled synchronization and replication between Active Directory and Microsoft Entra ID. Manage and implement change requests through Jira (ITSM), ensuring proper documentation, testing, and deployment. Develop, review, and maintain Standard Operating Procedures (SOPs), technical documentation, and operational guidelines. Support student account housekeeping exercises, mail grouping activities, and account lifecycle management in accordance with institutional policies. Handle high-priority operational requests, including VIP and management-related account administration requests. Provide Level 1 and Level 2 operational support for Microsoft 365 messaging and identity services, ensuring timely resolution of incidents and service requests. Perform PowerShell administration and reporting to support Microsoft 365, Exchange Online, and Active Directory operational activities. Participate in service improvement initiatives, automation projects, and operational process enhancements to improve efficiency and user experience. Work collaboratively with internal stakeholders, vendors, and cross-functional teams to ensure the reliability, security, and continuous improvement of messaging and identity services. Requirements: Bachelor's degree in Business Administration, Engineering, Management or related field preferred. At least 3 years of experience in Azure AD, Microsoft O365, Cloud Messaging Service, implementation, configuration, system design or related experience. Experience in applying Agile techniques to iteratively prioritize and define requirements. Excellent interpersonal and communication skills.

What they're looking for

Microsoft 365Lead ManagementTrackingTroubleshooting

About Starhub Ltd.

Industry: Information & communications

Frequently asked questions

What does a Computer Systems Administrator at Starhub Ltd. do?

Responsibilities Administer and manage Microsoft Exchange Online, Microsoft Entra ID (Azure AD), Active Directory, and Microsoft 365 services for staff, students, shared mailboxes, and generic accounts. Manage cloud-based messaging services and collaborate with vendors on Microsoft 365, Active Direc…

What skills does this Computer Systems Administrator role need?

Key skills for this role include Microsoft 365, Lead Management, Tracking, Troubleshooting.

How much does a Computer Systems Administrator at Starhub Ltd. pay?

This role lists a salary of S$4,000 – S$5,200 per month.

Is this Computer Systems Administrator role remote, hybrid, or on-site?

The listing is based in D14 Geylang, Eunos. Check the posting for remote or hybrid options.

How do I apply for this Computer Systems Administrator role?

You can apply directly on Starhub Ltd.'s careers page. ApplyLah can tailor your résumé and cover letter to this exact role in seconds first.