Job Title: Microsoft 365 Administrator L3 Support

Experience: 37 Years

Location: Chennai

Employment Type: Full Time

Shift:- Rotational Shift

Job Summary

We are looking for an experienced Microsoft 365 Administrator / M365 L3 Support Engineer to manage and support enterprise Microsoft 365 environments. The role will involve administration, troubleshooting and support across Exchange Online, Microsoft Entra ID (Azure AD), Microsoft Teams, SharePoint, OneDrive, Microsoft Intune and Microsoft Defender for Office 365.

Key Responsibilities

- Provide L3 administration and troubleshooting for Microsoft 365 services.
- Manage Microsoft Entra ID / Azure AD, including user creation, termination, group management, role assignments and access provisioning.
- Administer Exchange Online, including shared mailboxes, distribution lists, mail flow, mailbox permissions and email troubleshooting.
- Manage Microsoft Teams channels, groups and access permissions.
- Administer SharePoint Online and OneDrive for Business, including access, permissions, synchronization and troubleshooting.
- Manage corporate endpoints using Microsoft Intune, including device enrollment, compliance policies and configuration profiles.
- Support Microsoft Defender for Office 365, including email threat investigation, message tracing, anti-spam and security policies.
- Manage Conditional Access policies and identity/access controls.




- Perform Windows Server patch management across domain controllers, file servers and Hyper-V environments.
- Use PowerShell for Microsoft 365 administration and task automation.
- Handle escalated incidents through ITSM tools, ensuring SLA adherence and proper escalation.
- Prepare and maintain technical documentation and knowledge base articles.
- Coordinate with internal teams and stakeholders for incident resolution and change activities.

Mandatory Skills
- Microsoft 365 Administration
- Exchange Online
- Microsoft Entra ID / Azure AD
- Microsoft Intune
- Microsoft Teams
- SharePoint Online
- OneDrive for Business
- Microsoft Defender for Office 365
- Conditional Access
- PowerShell
- L3 Support / ITSM

Positive to Have
- Windows Server Administration
- Server Patch Management
- Active Directory
- Hyper-V
- Email Security
- Backup & Recovery
- Microsoft 365 Security & Compliance
- Azure Fundamentals / relevant Microsoft certifications

Education BE/B.Tech/B.Sc./Any relevant IT qualification.

If the JD aligns with your roles and responsibility share us your updated resumes to [email protected] or WhatsApp (phone hidden).

Please Note:- this will be rotational Shift.

Looking for immediate joiner

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📌 Admin& Active Directory - 3i Infotech - Chennai
🏢 3i Infotech
📍 Chennai