Senior M365 Operations Engineer – Identity & Security
OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD
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Job summary
Optimum Solutions (Singapore) Pte Ltd is seeking a senior Microsoft 365 administrator to provide operational and technical support for the Microsoft 365 suite, ensuring availability, security and policy compliance across Entra ID, Exchange Online, SharePoint Online, Teams and OneDrive for Business.
You will operate independently in a large enterprise environment, with deep Identity and Access Management expertise, and a proven ability to resolve complex collaboration and messaging issues while
Qualifications
- Senior hands-on experience administering Microsoft 365 services (8–10 years).
- Must have worked in large enterprise environments.
- Strong AD and M365 background.
- Identity and Access Management with M365, AD, and Azure AD.
- Experience with Entra ID, Exchange Online, SharePoint Online, Teams, and OneDrive.
- Experience supporting large enterprise Microsoft 365 environments.
- Ability to operate independently with minimal supervision.
Responsibilities
- Operate, administer, and support account lifecycle management using in-house Account Provisioning System and on-prem AD servers.
- Manage configurations for mailboxes, distribution lists, shared mailboxes, Teams, and SharePoint Online sites.
- Configure and maintain MFA, role assignments, and service-level access controls.
- Troubleshoot complex collaboration, identity, and messaging issues across M365 services.
- Resolve incidents with minimal supervision and escalate to Microsoft Support when required.
- Maintain operational documentation, runbooks, and configuration records.
- Work closely with various departments to manage account lifecycle.
Skills
Tools
Job description
Optimum Solutions (Singapore) Pte Ltd is seeking a senior Microsoft 365 administrator to provide operational and technical support for the Microsoft 365 suite, ensuring availability, security and policy compliance across Entra ID, Exchange Online, SharePoint Online, Teams and OneDrive for Business.
You will operate independently in a large enterprise environment, with deep Identity and Access Management expertise, and a proven ability to resolve complex collaboration and messaging issues while
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