Network Engineer

Network Engineer

Location: London (Hybrid Working)

Salary: Circa £78k + bonus + benefits

The Opportunity

We're partnering with a highly regarded professional services organisation in London to hire an experienced Network Engineer into a key infrastructure role within their IT function.

This is a hands-on engineering position within a complex, enterprise-scale environment where you'll take ownership of both operational stability and ongoing network evolution.

Key Responsibilities

• Take ownership of enterprise LAN/WAN infrastructure, ensuring stability, performance, and scalability across multiple sites
• Support, configure, and optimise Cisco Catalyst (9300) and Nexus switching environments
• Manage and maintain Palo Alto Prisma Access policies and secure connectivity
• Support and administer FortiGate Firewalls, including ongoing threat monitoring and security tuning
• Act as an escalation point for complex network incidents and performance issues
• Work closely with security and infrastructure teams to strengthen network security posture
• Support delivery of network-related changes through both internal teams and external managed service providers
• Contribute to infrastructure projects including office moves, upgrades, and network redesigns
• Produce clear and accurate HLD/LLD documentation to support design and change governance
• Ensure network operations align with regulatory and compliance requirements (SRA standards)

Key Requirements:

• Strong background in enterprise networking with a focus on routing and switching (L2/L3)
• Solid understanding of BGP and OSPF in production environments
• Hands-on experience with Cisco Catalyst and Nexus platforms
• Exposure to VSS and vPC design/implementation concepts
• Strong working knowledge of enterprise WLAN environments and Cisco Wireless LAN Controllers
• Experience with Network Access Control (NAC), ideally Cisco ISE
• Good understanding of AAA services (RADIUS, TACACS+, 802.1X)
• Exposure to Palo Alto Prisma Access and/or FortiGate Firewalls preferred
• Strong troubleshooting skills across complex enterprise networks
• Ability to produce structured technical design documentation (HLD/LLD)
• Exposure to Azure networking/hybrid cloud environments