Role Title: Infrastructure Network Operations Engineer
Role Function and Department: Digital Technology - Infrastructure Management
Location: Milton Hill, Abingdon, UK
Position Summary:
As a member of the Infrastructure Management Service Delivery Team, the Infrastructure Network Operations Engineer provides hands-on support to maintain healthy IT Services. The incumbent identifies and captures business needs and helps specify and implement IT solutions to meet those needs.
Key Accountabilities/ What You’ll Achieve
• Design, implement, and manage enterprise LAN, Hybrid WAN (MPLS + SDWAN), and cloud network infrastructure to support scalable and resilient IT services.
• Manage the lifecycle of network infrastructure, including hardware/software upgrades, vendor coordination, and end-of-life planning.
• Support and optimise Azure networking services (e.g., vNet, UDR, VPN Gateway, ExpressRoute) to enable robust hybrid cloud connectivity.
• Monitor network performance and work with a global team to ensure 7x24 network operations
• Provide troubleshooting and analyse to network issue, ensuring rapid incident resolution.
• Collaborate with other IT teams to deliver infrastructure projects and ensure compliance with security standards.
• Maintain accurate network documentation and contribute to disaster recovery planning and testing to support business continuity.
What will you gain from this role?
• Deep technical expertise in managing enterprise LANs, Hybrid WANs (MPLS + SDWAN), and cloud networking (e.g., Azure vNet, ExpressRoute, VPN Gateway)
• Hands-on experience with Cisco routers, switches, wireless controllers, NAC and Fortinet FortiGate firewalls
• Contribute to mission-critical operations, ensuring uptime and performance across global sites
• Opportunities to lead or contribute to infrastructure modernization, such as lifecycle management of network devices and cloud integration
Skills & Qualifications
Essential:
• Demonstrated expertise in operating and managing a complex enterprise network infrastructure mixed with LAN, WAN (MPLS/SDWAN/VPN) and Cloud
• Understanding network protocols and technologies, such as TCP/IP, BGP, OSPF, MPLS, VLANs, STP, DNS, DHCP, NAT, VPN.
• Proven experience managing and configuring network hardware such as Cisco Router/Switch/ Wireless Controller, Forescout NAC, and FortiGate Firewall.
• Proven experience managing Cloud Networking Infrastructure (vNets, NSGs, VPN Gateway, ExpressRoute).
• Proven experience monitoring network performance using tools such as SolarWinds
• Strong problem-solving skills and proven experience using network tools (ex. Wireshark) to perform packet analysis and deep traffic inspection.
• Extensive experience in enterprise network engineering
Preferred:
• Familiarity with DMZ, proxy, voice, or unified communication environments
• Experience working with Azure Load Balance
• Familiarity with Zscaler Zero Trust Architecture, and experience working with Zscaler Internet Access and Zscaler Private Access
• Certified in Cisco CCNP, FortiGate NSE or Azure Network Engineer
• Familiarity with Network Visio Drawing
• Good Communication Skills
• Experience in a senior (or lead) Enterprise Network Engineer role