Wanstor

Managed IT services with AI security

Network Engineer - Fortinet

Network Engineering & AdministrationUpdated on Nov 13

Full-timeLondon, UK£55k - £60k /yrHybrid

About the Job

Requirements

Expert knowledge of LAN, WLAN, and WAN technologies and products.
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 end to end.
Experience delivering network changes, upgrades, migrations, or implementation projects.
Comfort working directly with customers and senior stakeholders.
Ability to assess a requirement or problem, determine an approach, and own it through completion.
Strong documentation skills and an organised approach to change.

Responsibilities

Develop, optimise, and securely maintain managed networks.
Own, support, and continually improve a Fortinet-led network environment.
Take the technical lead on network projects from initial requirements and design through 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 requiring 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 are 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 wider technical teams and third parties on projects involving networking, cloud, security, or infrastructure.
Mentor and consult customers and internal teams on the network portfolio.

Desired Qualifications

Experience within an MSP or customer-facing IT environment.

Wanstor is an award-winning Managed IT Services provider helping ambitious organisations use technology to achieve better business outcomes — securely, efficiently, and at scale. Established in 2002, we deliver end-to-end technology services spanning managed IT support, cloud, infrastructure, networking, security, communications, and AI adoption services.

A Network Engineer develops, optimises and securely maintains Wanstor managed networks. Excellent troubleshooting, planning and customer facing skills are key to efficiently reduce resolution times, deliver projects on time and build relationships with senior stakeholders.

The role requires expert knowledge of the LAN/WLAN & WAN technologies & products to meet customer requirements.

As part of a highly specialised team, you will need to mentor/consult customers and internal teams the network portfolio.

Own, support and continually improve a Fortinet-led network environment
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

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

About the Company

Wanstor

Managed IT services with AI security

Wanstor is a UK managed IT services provider that helps organisations get more from technology. As part of Previder, Wanstor combines local expertise with European scale to deliver managed IT, cloud, cybersecurity, AI, infrastructure, data centre and voice solutions. The approach rests on three pillars: Experience First (proactive, seamless IT that keeps people productive), AI Fluent (assisting organisations to adopt AI and turn tools like Microsoft Copilot into business value), and Secure by Default (security and resilience built into everything). Their services aim to boost productivity, resilience, agility and innovation by simplifying complexity and focusing technology on outcomes. Founded in 2002, with offices in London and engineers nationwide.

Company size: 201-500
Company stage: Not listed
Total funding: Not listed
Headquarters: London, United Kingdom
Founded: 2002

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