AD/O365/Wintel Senior Admin Role

Senior Microsoft 365 (O365) & Exchange Administrator

Experience

8-12 Years

Job Location

Hybrid / Onsite

Key Responsibilities

Microsoft 365 Administration

- Administer and support Microsoft 365 services.
- Manage Exchange Online, Teams, SharePoint Online, OneDrive, and Microsoft 365 Apps.
- Configure and manage Microsoft 365 tenants.
- Perform license management and user lifecycle administration.
- Manage service health monitoring and issue resolution.
- Support Microsoft 365 migrations and onboarding activities.
- Maintain governance and compliance standards.

Exchange Online & Hybrid Exchange

Core Responsibilities

- Manage Exchange Online environments.
- Administer Hybrid Exchange deployments.
- Manage mail flow, connectors, transport rules, and mail routing.
- Configure and troubleshoot mailboxes, shared mailboxes, resource mailboxes, and distribution lists.
- Perform mailbox migrations and tenant-to-tenant migrations.
- Manage SMTP, SPF, DKIM, and DMARC configurations.
- Troubleshoot email delivery and messaging issues.
- Support retention policies, journaling, and litigation hold.

Advanced Exchange Skills

- Exchange Hybrid Configuration Wizard.
- Exchange Online Protection (EOP).
- Microsoft Defender for Office 365.
- Exchange PowerShell administration.
- Message Trace and Mail Flow Analysis.
- Exchange Security & Compliance.

Active Directory & Directory Services

Core AD Administration

- Administer Active Directory Domain Services (ADDS).
- Manage Forests, Domains, Trusts, Sites, and Services.
- Configure and maintain Group Policies (GPO).
- Manage DNS, DHCP, LDAP, Kerberos, and Certificate Services.
- Perform AD health checks and replication monitoring.
- Manage FSMO role administration.
- Conduct AD audits and security reviews.

Identity & Access Management





- User provisioning and deprovisioning.
- RBAC administration.
- Privileged Access Management.
- Identity Governance.
- Access certification and reviews.
- Hybrid identity administration.

Microsoft Entra ID (Azure AD)

- Manage Microsoft Entra ID administration.
- Configure Azure AD Connect and synchronization.
- Implement Conditional Access Policies.
- Configure Multifactor Authentication (MFA).
- Manage Single Sign-On (SSO) and Federation.
- Manage Privileged Identity Management (PIM).
- Configure Identity Protection and Risk-Based Access Controls.
- Support passwordless authentication.

Windows Server Administration

Required Windows Skills

- Windows Server 2016 / 2019 / 2022 Administration.
- Server provisioning and decommissioning.
- Patch management and security updates.
- Performance monitoring and optimization.
- Windows Failover Clustering.
- File and Print Services administration.
- Storage management.
- Backup and recovery operations.

Troubleshooting
- OS performance issues.
- Service failures.
- Authentication-related incidents.
- Network connectivity issues.
- DNS and Group Policy troubleshooting.

Security & Compliance

- Microsoft Defender for Office 365.
- Microsoft Defender for Endpoint.
- Microsoft Purview Compliance.
- Data Loss Prevention (DLP).
- Email Security and Anti-Phishing controls.
- Conditional Access Policies.
- Security Incident Response.
- Audit and Compliance Reporting.

Automation & Scripting





- PowerShell scripting and automation.
- Exchange Online PowerShell.
- Microsoft Graph PowerShell.
- Azure Automation runbooks.
- Administrative workflow automation.
- Reporting and compliance automation.

Monitoring & ITSM

- ServiceNow ITSM.
- Incident, Change, Problem Management.
- Major Incident Management support.
- SLA & KPI adherence.
- Microsoft 365 Admin Center monitoring.
- Azure Monitor and Log Analytics.
- Operations documentation and reporting.

Required Skills

Must Have

- Microsoft 365 Administration
- Exchange Online
- Exchange Hybrid
- Active Directory
- Microsoft Entra ID (Azure AD)
- Azure AD Connect
- Windows Server Administration
- DNS / DHCP
- Group Policy Management
- PowerShell
- Microsoft Teams Administration
- Identity & Access Management
- ServiceNow

Valuable to Have
- Microsoft Intune
- SCCM / MECM
- Microsoft Defender Suite
- Microsoft Purview
- Azure Administration
- Microsoft Sentinel
- SharePoint Online Administration
- OneDrive Administration

Preferred Certifications

Microsoft Certifications

- Microsoft 365 Certified: Enterprise Administrator Expert
- Microsoft 365 Certified: Messaging Administrator Associate
- Microsoft Certified: Identity and Access Administrator (SC-300)
- Microsoft Certified: Azure Administrator Associate (AZ-104)
Windows Server Hybrid Administrator Associate (AZ-800 / AZ-801)

- Additional
- ITIL Foundation
- Microsoft Security Certifications (SC-200 / SC-400)

Soft Skills
- Strong client-facing communication.
- Stakeholder management.
- Major Incident Management experience.
- Root Cause Analysis (RCA) expertise.
- Technical leadership and mentoring.
- Documentation and knowledge management.
- Ability to manage global enterprise environments.

📌 Windows Administrator (Pune)
🏢 Zensar Technologies
📍 Pune