Senior Network Engineer (Fortinet)

Salary: £? - ? per year

Requirements:

• Strong hands-on experience administering FortiGate firewalls
• Experience with security policy management, VPNs, remote access and firewall troubleshooting
• Enterprise-scale LAN/WAN support and administration experience
• Data centre networking experience
• Routing and switching expertise
• Strong knowledge of TCP/IP, VLANs, DHCP, DNS, NTP, OSPF and BGP
• Experience with network monitoring, diagnostics and performance optimisation
• Experience with incident investigation and problem management
• Experience with high availability and resilient network architectures
• Experience with network segmentation and security zoning
• Experience with disaster recovery and business continuity networking
• Experience with load balancing and failover technologies
• Fortinet FCP / NSE certification desirable
• CCNP Enterprise certification desirable
• ITIL Foundation certification desirable

Responsibilities:

• Provide BAU support, maintenance and proactive monitoring across the network infrastructure
• Troubleshoot and resolve network incidents, service degradations and outages
• Perform root cause analysis and implement permanent fixes
• Administer and support FortiGate firewall environments
• Implement approved network changes, upgrades and security improvements
• Work closely with infrastructure, server and security teams to deliver technical projects
• Maintain high standards of documentation and operational procedures

Technologies:

• Firewall
• FortiGate
• Support
• ITIL
• LAN
• Load Balancing
• Network
• Security
• TCP/IP

More:

We are seeking an experienced Senior Network Engineer to join our infrastructure team on an initial 6-month contract, with strong potential for extension. This is a hands-on engineering role focused on supporting, maintaining, troubleshooting and enhancing a complex enterprise network environment. The role is based in Liverpool with a hybrid working model of a minimum of 3 days per week onsite, Monday to Friday, free onsite parking, and occasional out-of-hours work to support planned changes, maintenance activities and major incidents. The assignment offers up to £470 per day through an umbrella arrangement, with potential flexibility for the right candidate.

last updated 37 week of 2026