Job Description

Exchange Architect- Migrating OnPrem to Online
Job type:Contract
Town/City:London
County:Remote
Salary/Rate:450 - 535 per day
Business Sector:IT
Job ref:BBBH152914
Post Date:July 04, 2025
Exchange Architect - Migration of OnPrem to Online
Location: Hybrid, onsite in London with occasional client visits (expensed)
Contract Type: Outside IR35 (if applicable)
Duration: 6 Months (Initial Term)
Start Date: ASAP
Rate: 500 to 535 per day
Overview:
We're on the hunt for a seasoned Exchange Architect to join on a 6-month contract. This role is laser-focused on the migration from Exchange On-Prem to Exchange Online, so we need someone who's been there, done that, and preferably written the migration playbook along the way.
You'll also need to be rock-solid across the Wintel stack-we're talking Windows Server, Active Directory, DNS, Group Policy-the full Windows infrastructure backbone.
Key Responsibilities:

• Lead and execute the migration of Exchange from on-premise to Exchange Online (O365).
• Troubleshoot and resolve issues across both on-prem and cloud environments.
• Collaborate with internal IT teams to plan and deliver migration with minimal disruption.
• Provide technical expertise on Wintel systems to support and stabilize the broader environment during the transition.
• Ensure documentation is created and updated to reflect new architecture and processes.

• Proven hands-on experience migrating Exchange on-prem to Exchange Online.
• Strong Wintel background - Windows Server, AD, DNS, DHCP, Group Policy.
• PowerShell scripting know-how to automate tasks and streamline deployment.
• Solid understanding of hybrid Exchange environments and Azure AD Connect.

• Experience in highly regulated environments.
• Familiarity with M365 security and compliance features.
• Any relevant certifications (Microsoft, Azure, etc.).