Senior Microsoft Exchange On-Prem & Hybrid Infra SME

TALENTMATE; Dubai; On-site; AED 400,000 - 560,000; Full time

Job summary

Ericsson in Dubai is seeking an experienced MS Infrastructure & Collaboration SME to join the IT Operations team. This role focuses on Exchange Server On-Premises administration, with exposure to Hybrid configurations, Active Directory, and Entra ID, within a live enterprise environment.

You will lead L3 support for Exchange On-Premises, manage DAGs, certificates, mail flow, and patching, while integrating with Azure, M365, and on-prem platforms.

Qualifications

• Minimum 8 years of hands-on experience administering Microsoft Exchange Server On-Premises in a large enterprise production environment.
• Experience with Exchange DAG configuration, quorum management, witness servers, database failover, and recovery.
• Exchange certificate lifecycle management, including CSR generation, renewal, and multi-server certificate deployment.
• Exchange transport services, connectors, and mail flow troubleshooting.
• Exchange Hybrid configurations and coexistence with Exchange Online.
• Active Directory Domain Services (AD DS), DNS, Group Policy, and replication.
• Microsoft Entra ID (Azure AD) and Microsoft Entra Connect.
• Windows Server administration and PowerShell scripting.

Responsibilities

• Provide L3 SME-level support for Exchange On-Premises, including DAG architecture, certificate lifecycle management, transport services, connectors, and mail flow troubleshooting.
• Manage Exchange Hybrid configurations connecting On-Premises with Exchange Online.
• Support Active Directory Domain Services (AD DS), including DNS, Group Policy, authentication, and replication, ensuring the health of Exchange-dependent services.
• Administer Microsoft Entra ID, including identities, authentication, users, groups, and roles, in support of a hybrid identity model.
• Lead complex incident resolution and root cause analysis for Exchange On-Premises outages, DAG failovers, and certificate-related mail flow issues.
• Support Azure Virtual Desktop (AVD), Microsoft 365 services, and Azure integrations with on-premises infrastructure.
• Administer supporting platforms including Windows Server, Enterprise Vault, SCCM/MECM, SCOM, SharePoint, and Intune.
• Perform Exchange On-Premises patching, cumulative update deployments, certificate renewals, and vulnerability remediation activities.
• Develop PowerShell automation for Exchange and Active Directory operational tasks.
• Maintain SOPs and runbooks covering Exchange On-Premises failover, certificate renewal, disaster recovery, and DAG recovery procedures.

Skills

Exchange On-Prem

DAG Architecture

Certificate Lifecycle

Mail Flow Troubleshooting

Hybrid Exchange

AD DS

Entra ID

PowerShell

Windows Server

Microsoft 365

Tools

SCCM/MECM

SCOM

Intune

SharePoint

Azure

AVD

Enterprise Vault

Job description

Ericsson in Dubai is seeking an experienced MS Infrastructure & Collaboration SME to join the IT Operations team. This role focuses on Exchange Server On-Premises administration, with exposure to Hybrid configurations, Active Directory, and Entra ID, within a live enterprise environment.

You will lead L3 support for Exchange On-Premises, manage DAGs, certificates, mail flow, and patching, while integrating with Azure, M365, and on-prem platforms.