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# Senior IT Infrastructure Engineer

- **Company:** KO2 Embedded Recruitment Solutions Ltd
- **Location:** United Kingdom
- **Experience:** Expert
- **Salary:** £169,000
- **Contract:** Temporary contract
- **Skills:** Software as a Service, Dynamic Host Configuration Protocol, Domain Name System (DNS), Hyper-V, Identity and Access Management, Windows Servers, Networking Basics, Routing, TCP/IP, Virtual Local Area Networks, Virtualization Technology, Backup and Restore, Firewalls (Computer Science), Information Technology, Veeam, Network Server, Vmware
- **Published:** November 14, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/senior-it-infrastructure-engineer/56424118

## About the Role

Proven, senior-level experience as an Infrastructure Engineer within a mid-to-large, established organisation with complex, bespoke, or grown organically legacy environments

Experience in a regulated sector, such as financial services, healthcare, life sciences or defence, with a solid understanding of handling sensitive data securely, particularly during data transfers

Strong hands-on experience with Dell servers, Windows Server, Hyper-V/VMware, QNAP NAS and Cisco Meraki

Solid networking fundamentals, including TCP/IP, DNS, DHCP, routing and ACLs

Proven track record of physical infrastructure work, including racking, cabling and site relocations

Experience with SaaS tenancy migrations and identity platforms such as AD and Entra ID

Prior involvement in M&A, infrastructure transformation, or large-scale integration programmes is highly desirable

A natural mentor, comfortable leading and upskilling less experienced colleagues without steamrolling them

Calm, structured and professional under pressure

Full UK driving licence

## Description

Assess legacy infrastructure and design pragmatic, low-risk migration and remediation plans

Physically relocate legacy equipment between sites, including racking, unracking, cabling and re-cabling comms rooms

Commission new server rooms, including racks, hardware population and structured cabling

Manage Dell servers, Windows Server and virtualisation across both environments

Configure and maintain QNAP NAS storage

Own backup and restore using Veeam, including monitoring jobs, performing restores and supporting active migrations

Configure and troubleshoot Cisco Meraki networking, including firewalls, VLANs and segmentation

Tidy up and restructure legacy network environments

Support SaaS and tenancy migrations, including moving services from legacy to new tenants, and identity platform work across AD and Entra ID

Act as a senior escalation point, working closely with project managers, security teams and vendors

Mentor and upskill junior members of the in-house IT team, ensuring knowledge transfer ahead of handover