Infrastructure Network Operations Engineer

1 week ago

Abingdon, Oxfordshire, United Kingdom Infineum Full time £60,000 - £90,000 per year

Job Title: Infrastructure Network Operations Engineer

Job Location: Milton Hill

Posting Start Date: 14/10/2025

Job Description:

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

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