M365 Messaging Engineer: Exchange Online Expert

Methods; Greater London; Hybrid; GBP 65,000 - 95,000; Full time

Benefits offered by this job

LinkedIn Learning access

Management development programme

Flexible working (home working)

Job summary

Methods is seeking an experienced Messaging Engineer to join a major technology transformation programme and lead the migration and modernisation of the organisation's messaging services. You will configure, migrate, test and support messaging across Exchange Online and Microsoft 365, focusing on secure mail flow, data integrity and user experience through the transformation.

You will work with identity, EUC, network, security and programme teams to ensure messaging changes align with the wider

Qualifications

• Extensive hands-on experience with Exchange Online and Microsoft 365 messaging.
• Proven experience delivering mailbox migrations within complex enterprise environments.
• Experience with tenant-to-tenant and/or hybrid Exchange migrations at scale.
• Strong understanding of Exchange Online architecture and administration.
• Strong knowledge of mail flow, connectors, accepted domains, transport rules and recipient configuration.
• Strong understanding of DNS, Autodiscover and SMTP relay.
• Experience managing mailbox permissions, delegates, shared mailboxes, calendars and distribution groups.
• Experience troubleshooting Outlook, mobile access and other messaging clients.

Responsibilities

• Configure and manage Exchange Online and Microsoft 365 messaging services according to the approved architecture.
• Design, implement and troubleshoot mail-routing configurations across environments.
• Establish secure coexistence arrangements between messaging environments during migration.
• Prepare and execute mailbox and messaging-object migrations across pilot and production waves.
• Develop migration plans and readiness checks for prerequisites.
• Validate mailbox permissions and dependencies before and after migration.
• Test mobile access and Outlook/client behaviour during transition.
• Implement DNS changes and messaging service dependencies.
• Provide early-life support and technical documentation for handover.

Skills

Exchange Online

Microsoft 365

Mailbox migrations

PowerShell automation

DNS & Autodiscover

Mail flow & connectors

Security controls Defender

Troubleshooting Outlook/mobile

Job description

Methods is seeking an experienced Messaging Engineer to join a major technology transformation programme and lead the migration and modernisation of the organisation's messaging services. You will configure, migrate, test and support messaging across Exchange Online and Microsoft 365, focusing on secure mail flow, data integrity and user experience through the transformation.

You will work with identity, EUC, network, security and programme teams to ensure messaging changes align with the wider