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Senior Infrastructure Engineer

Job Description

Senior Infrastructure Engineer

  • Hybrid, travel to the central London office
  • Outside IR35 contract

Our client are looking for a Senior Infrastructure Engineer with experience in Server Migration and a strong background in server administration, security best practices, and hybrid cloud environments to join them on a contract basis.

This role combines hands-on technical delivery (integration, server migrations, data centre work) with coordination and documentation of complex migration activities across on-premises and cloud platforms.

Key Responsibilities

Server Administration & Migration

  • Perform full lifecycle server administration: build, patch, configure, secure, and decommission systems.
  • Plan and execute server migrations for both physical and virtual workloads (Windows, Linux).
  • Carry out Active Directory forest and domain separations,
  • Deploy and manage Azure Arc, Defender for Cloud, and related hybrid management agents.
  • Conduct firmware and BIOS updates, disk replacements, racking, cabling, and rebuilds in data centres.
  • Support virtualisation and containerisation workloads (VMware, Hyper-V, Kubernetes).

Hybrid Cloud & Virtualisation

  • Manage hybrid workloads between on-premises data centres and Azure.
  • Deploy and support Azure VMs, VNets, Private DNS zones, and Defender for Cloud Arc integrations.
  • Troubleshoot connectivity between physical servers, virtualised environments, and cloud-based services.

Skills & Experience Required

Core Technical

  • Expert-level knowledge of Windows Server administration (2016–2022) and/or Linux.
  • Practical experience in Active Directory, DNS, DHCP, Group Policy, and PowerShell scripting.
  • Hands-on experience with Azure Cloud services, particularly IaaS, Defender for Cloud, and Azure Arc.

Security & Governance

  • Working understanding of Microsoft Defender for Endpoint, Defender for , and Azure Policy.

Desirable Certifications

  • Microsoft Certified: Windows Server Hybrid Administrator / Azure Administrator Associate
  • CompTIA Security+ or Microsoft Cybersecurity Architect (SC-100)
  • ITIL v4 Foundation
  • VMware Certified Professional (VCP)
  • CKAD or Kubernetes Administrator certification

If you have the desired skills and experience and would like to find out more please apply to this advert by following the link below and attaching a copy of your most recent CV. If successful we will be in touch to discuss the role in more detail.