Infrastructure Engineer | Windows Server, AD & Virtualisation | Global Hosting Environment Rate: approx. £400 per day (Outside IR35) Length: 10–12 months (possibility for it to be extended beyond this) Location: Windsor (Hybrid – 4 days per week on site) Contract, full-time We’re hiring a Windows-focused Infrastructure Engineer to support a global hosting estate delivering highly available managed services across multiple regions. This is a hands-on, operational role where you’ll take ownership of Windows infrastructure stability within a large-scale virtualised environment. Availability, security, and disciplined change control are non-negotiable, and you’ll be trusted to execute with precision. The Role You will: Administer and maintain hosted Windows Server infrastructure • Own monthly Windows patching across critical systems • Patch Active Directory domain controllers and bastion / jump servers (HA pairs across regions) • Execute controlled, sequential patching with clear rollback discipline • Perform pre- and post-patch validation (AD replication, authentication, core services) • Manage large VM estates supporting customer workloads • Operate across compute, storage, and virtualisation layers • Follow ITIL-aligned incident, change, and problem processes • Respond to infrastructure incidents quickly and methodically • Collaborate with network, security, and application teams Non-Negotiables Windows Server in large virtualised / data centre environments • Active Directory administration & Group Policy design • High-availability production Windows systems • Microsoft security best practices • Strong troubleshooting in uptime-critical estates • Experience within structured change-controlled environments • VMware or Nutanix What You’ll Work With Windows Server • Active Directory • Group Policy • VMware • Nutanix • Bastion / jump host models • ITIL service management processes • Enterprise VM estates Nice to Haves Nutanix migrations from VMware • Dell PowerStore or PowerFlex • PowerShell automation • Hosting provider / MSP experience • ITIL certification • Regulated environments Why Join / Projects You’ll join a mature global hosting function supporting enterprise clients who depend on 24x7 availability. Current focus areas include strengthening patch governance, improving AD resilience, supporting virtualisation evolution, and driving measurable service stability improvements. You’ll have defined ownership, visibility across regions, and the opportunity to directly influence reliability outcomes.