Senior Network Engineer

We’re looking for a Senior Network Engineer to design, secure, and operate a large-scale hybrid network across Microsoft Azure, corporate offices, datacentres, and a nationwide retail estate.

This is a hands-on role with architectural input, covering Azure networking, enterprise LAN/WAN, firewalls, SD-WAN, hybrid connectivity, and retail store networking. You’ll be responsible for availability, performance, resilience, and security across both corporate and customer-facing environments.

• £85,000
• London Based

What You’ll Do

• Design and operate Azure networking (VNets, routing, Azure Firewall, VPN Gateway, ExpressRoute, load balancing)
• Manage enterprise LAN/WAN using Cisco, Meraki, Aruba, Juniper, or equivalent
• Deploy and support firewalls (SonicWall, Palo Alto, Fortinet) and secure network segmentation
• Design and support retail store networks (Meraki, SD-WAN/MPLS, POS connectivity, Wi-Fi, 4G/5G failover)
• Operate hybrid connectivity between Azure and on-prem environments
• Monitor and troubleshoot complex network issues across cloud, datacentre, and retail
• Automate network builds using Terraform, PowerShell, Python, or Azure CLI
• Work with vendors, carriers, and service providers to maintain SLA performance

Essential

• Strong hands-on Azure networking experience
• Enterprise routing, switching, and firewall expertise
• Proven retail networking and POS support experience
• Deep knowledge of TCP/IP, BGP, OSPF, VPNs, DNS/DHCP, IPv4/IPv6
• Experience with SD-WAN and hybrid cloud connectivity
• Excellent troubleshooting and documentation skills

Desirable

• Azure Virtual WAN or cloud firewalls
• AWS networking exposure
• Large-scale Wi-Fi design or Meraki wireless
• Network automation / Infrastructure-as-Code