IT Contractors UK Profile
John Green
Senior Infrastructure Engineer
Verified email
Founding Contractor · 2026
Contractor snapshot
Primary specialism
Infrastructure & Networking
Location / working location
Holywell
Current availability
Available within 1 month
Confirmed 10 Aug 2026
Profile status
Active contractor profile
Professional profile
Senior Infrastructure Specialist with 25+ years of experience delivering enterprise Windows, Linux, VMware, and Azure infrastructure across financial services, retail, and maritime sectors. Specialist in infrastructure modernisation, Microsoft Azure, Active Directory, Microsoft Entra ID, VMware virtualisation, PowerShell automation, platform migration and enterprise infrastructure transformation. Trusted to lead complex infrastructure projects and mission-critical technical deliveries independently within highly regulated environments. Core expertise includes Infrastructure Engineering, Hybrid Cloud, Microsoft Azure, VMware vSphere, Windows Server, Microsoft Entra ID, Active Directory, RHEL Linux, PowerShell Automation, Infrastructure Modernisation, Platform Migration, CyberArk PAM and Enterprise Transformation. Infrastructure Engineering | VMware | Azure | Microsoft Entra ID | Active Directory | Windows Server | RHEL | PowerShell | Virtualisation | Platform Modernisation | Migration | CyberArk | SCCM | Veeam | NetBackup | DNS | DHCP
Core skills
Core expertise includes Infrastructure Engineering
Hybrid Cloud
Microsoft Azure
VMware vSphere
Windows Server
Microsoft Entra ID
Active Directory
RHEL Linux
PowerShell Automation
Infrastructure Modernisation
Platform Migration
CyberArk PAM and Enterprise Transformation.
Infrastructure Engineering
VMware
Azure
What I’m looking for next
Target roles: Senior Infrastructure Engineer · Infrastructure Engineer
Contract preferences
Working preferenceRemote · Hybrid
Will workUK
IR35 preferenceOutside IR35 · Inside IR35
Expected rate
£500–£650/day
SenioritySenior
Contract lengthAny contract length
IT experience25 years
Contracting experience15 years
Available from1 Sep 2026
Relevant work experience
Carnival UK Group | Infrastructure Engineer (Senior Infrastructure Specialist) | VMware | Azure | Windows | Linux| Sept 2024 – Present Fleet Modernisation: Transitioned fleet-wide (11 Sites) infrastructure from VxRail/vSAN HCI to a modernised shared VMDK disk and 3-tier architecture, successfully increasing performance, eliminating vendor lock-in, and resolving critical iSCSI daemon failures. 3rd-Line Delivery: Provided high-availability 3rd-line engineering support across enterprise Windows Server 2022 and RHEL estates supporting highly available & mission-critical maritime operations. Automation & Efficiency: Leveraged advanced PowerShell automation to drive operational efficiency, deploy infrastructure monitoring, centralised logging, and execute rapid estate recovery. Governance: Operated strictly within formal ITIL frameworks and rigid maritime service management change controls. Technologies: Windows Server 2022, RHEL, VMware, Shared VMDK, PowerShell, vSAN, VxRail, ITIL Carnival UK (P&O Cruises & Cunard) | Infrastructure Engineer | June 2023 – July 2024 Bare-Metal Deployment: Engineered the end-to-end bare-metal build for the new Cunard vessel, Queen Anne, implementing full infrastructure stacks of Windows Server 2019/2022, RHEL 8/9, AD DS, DNS, and DHCP from the ground up. Storage & Monitoring Architecture: Configured Windows Clusters, SCCM deployment frameworks, and vSAN storage stacks; deployed SolarWinds for real-time infrastructure monitoring and node alerting. International Supplier Management: Deployed solo to Italy to lead engineering workstreams, successfully managing shipbuilder stakeholders and third-party suppliers to hit aggressive launch deadlines. Technologies: Windows Server 2019/2022, RHEL 8/9, AD DS, vSAN, Windows Clusters, SCCM, SolarWinds, DNS,
Experience & credentials
Certifications, sector experience and security clearance are self-declared unless specifically marked as independently verified by IT Contractors UK.
Sector experience
Financial Services · Insurance · Public Sector · Private Sector · Retail · Travel
Professional links
Contact details are controlled by the contractor and are not displayed automatically. Profile information is self-declared unless explicitly marked as verified.