Microsoft Exchange Engineer (Exchange Online Migration)

12 Months Extendable Contract Job Description We are seeking an experienced Microsoft Exchange Engineer to support a large-scale enterprise messaging environment and lead the migration of on-premises Exchange services to Exchange Online / Microsoft 365. The role involves Exchange infrastructure operations, mailbox migration, incident management, troubleshooting, security configuration, and ensuring high availability across multiple data centres. Key Responsibilities Lead mailbox migrations from on-premises Exchange to Exchange Online / Microsoft 365.

Manage and support Exchange Server 2016 or later, including multi-node Database Availability Groups (DAGs) across multiple data centres.

Troubleshoot mail flow issues, manage incidents, and provide BAU operational support.

Monitor infrastructure availability, maintain SLA performance, and implement security policies and change controls.

Work with global teams, business stakeholders, and clients to ensure smooth service delivery.

Use PowerShell scripting and monitoring tools to improve operational efficiency.

Key Requirements 5–10 years of experience supporting Microsoft Exchange Server 2016 or later in a large enterprise environment.

Strong experience with multi-node DAGs, clustering, and Exchange infrastructure across multiple data centres.

Hands-on experience with Exchange Online / Microsoft 365 migration and administration.

Experience with SCOM, Splunk, and PowerShell scripting.

Familiarity with BMC Remedy, AppViewX, and Trend Micro is advantageous.

Strong troubleshooting, communication, and stakeholder management skills.

What does this role require? This is primarily an Exchange Infrastructure Engineer / Messaging Engineer role, with a strong focus on both on-premises Exchange operations and cloud migration. The ideal candidate should have: Strong Exchange Server expertise – hands-on experience managing Exchange 2016+ in a large enterprise environment. DAG and high availability experience – managing multi-node DAGs and clustering across multiple data centres is essential. Exchange Online migration experience – migrating mailboxes and services to Microsoft 365 with minimal disruption. Production support capabilities – troubleshooting mail flow, resolving incidents, monitoring systems, and supporting SLAs. PowerShell and monitoring tools – scripting and using tools such as SCOM and Splunk.