Server Migration Engineer at TechByte Talent Ltd, London Area, £Contract Rate

Server Migration Engineer | URGENT | Outside IR35 Contract day rate | 1 day in West London

Our client is in the later stages of a large-scale infrastructure separation programme, with significant migration work still to complete across multiple countries and regions. They need a hands-on Server Migration Engineer with deep Windows Server and Active Directory expertise to take ownership of complex, business-critical migration delivery.

This is not an advisory role. You will be embedded in a live programme, working across a large and technically demanding estate where Active Directory domain separation, Windows Server migration, and Azure hosted environments are the core of the work.

What you will be doing

Planning and executing server migrations across Windows environments, including domain-to-domain moves, Active Directory forest and domain separations, OU restructures, and join and rejoin operations.

Managing pre and post-migration validation across application servers, identity dependencies, DNS, DHCP, Group Policy, and network connectivity.

Working with Azure IaaS, Virtual Networks, Private DNS zones, and hybrid management tooling to support hosted workloads within a separation context.

Providing immediate break-fix support on failed migrations or asset moves, restoring normal operation quickly under pressure.

Driving automation and configuration management via PowerShell, with additional tooling such as DSC or SCCM where relevant.

Contributing to runbooks, rollback plans, and change control documentation, communicating clearly with both technical and non-technical stakeholders.

What we are looking for

Deep, hands-on Windows Server (2016 to 2022) administration experience, including build, configuration, patching, and decommission.

Demonstrable Active Directory migration expertise, including domain-to-domain moves, trust relationships, DNS, DHCP, and Group Policy management.

Strong Azure IaaS experience, including Virtual Networks, Private DNS, and hybrid environment management. Experience in a separation or carve-out scenario is a significant advantage.

Solid networking fundamentals across VLANs, VPNs, firewalls, TLS, and certificate management.

Proven ability to work in 24/7, high-availability environments where downtime tolerance is minimal.

Prior experience on an M and A separation, infrastructure carve-out, or large-scale data centre migration programme is highly desirable.

Some Linux exposure is beneficial, though Windows is the primary focus.

Why this role

You will be a key technical contributor on a high-impact programme with real complexity and real consequences. The cross-regional scope, the depth of the Active Directory and Azure work, and the pace of the programme make this a compelling opportunity for an engineer who wants to do serious migration work at scale.