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# Senior Network Engineer - Fortinet

- **Company:** Wanstor Ltd
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £46,752.0
- **Contract:** Permanent contract
- **Skills:** Complex Networks, Dynamic Host Configuration Protocol, Network Address Translation, Domain Name System (DNS), Virtual Private Networks (VPN), Network Security, Routing, TCP/IP, Virtual Local Area Networks, Wide Area Networks, Wireless Networks, Wi-Fi Technology, Computer Network Technologies, Fortinet
- **Published:** October 10, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5921844872

## About the Role

* Strong hands-on experience with Fortinet technologies, particularly FortiGate firewalls
 * Good knowledge of Fortinet security, VPN and SD-WAN capabilities
 * Strong understanding of core networking including TCP/IP, DNS, DHCP, VLANs, VPNs, NAT and network security
 * Strong routing and switching knowledge
 * Experience supporting and troubleshooting LAN, WAN and wireless networks
 * Confidence diagnosing complex network and connectivity issues from end to end
 * Experience delivering network changes, upgrades, migrations or implementation projects
 * Comfortable working directly with customers and senior stakeholders
 * Able to take a requirement or problem, work out the best approach and own it through to completion
 * Strong documentation skills and an organised approach to change
 * Experience within an MSP or customer-facing IT environment would be highly beneficial

## Description

* Take the technical lead on network projects, from initial requirements and design through to implementation and handover
 * Configure, manage and troubleshoot FortiGate firewalls, including policies, VPNs, routing, security profiles and connectivity
 * Work across LAN, WAN, Wi-Fi, SD-WAN, switching, routing and firewalling
 * Lead complex troubleshooting and resolve network issues that require deeper technical investigation
 * Identify weaknesses, risks and opportunities for improvement across the network estate
 * Work directly with customer stakeholders, translating technical issues and recommendations into clear, practical advice
 * Own technical changes and ensure they're properly planned, tested, documented and communicated
 * Produce and maintain network documentation, diagrams, configurations and technical standards
 * Support network upgrades, migrations, refreshes and wider infrastructure projects
 * Work alongside Wanstor's wider technical teams and third parties where projects cross networking, cloud, security or infrastructure