Senior Network Engineer (Fortinet) - Liverpool

Senior Network Engineer (Fortinet) Up to £470 per day (Umbrella) with Potential Flexibility for the Right Candidate | Initial 6-Month Contract (Extension Highly Likely) | Liverpool (Hybrid) Our client is seeking an…

Hybrid IT
Pay rate £420 – £470/day
Contract type Contract
Posted 12 September 2026

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About this contract

Senior Network Engineer (Fortinet)

Up to £470 per day (Umbrella) with Potential Flexibility for the Right Candidate | Initial 6-Month Contract (Extension Highly Likely) | Liverpool (Hybrid)

Our client is seeking an experienced Senior Network Engineer to join their infrastructure team on an initial 6-month contract, with great potential for extensions.

This is a hands-on engineering role focused on supporting, maintaining, troubleshooting and enhancing a complex enterprise network environment. The successful candidate will play a key role in ensuring the stability, security and performance of critical network infrastructure while supporting both operational and project-based activities.

Location & Working Arrangements

Liverpool based
Hybrid working model with a minimum of 3 days per week onsite
Monday to Friday
Free onsite parking
Occasional out-of-hours work to support planned changes, maintenance activities and major incidents

Key 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

Essential Skills & Experience

Strong hands-on experience administering FortiGate firewalls
Security policy management, VPNs, remote access and firewall troubleshooting
Enterprise-scale LAN/WAN support and administration
Data centre networking experience
Routing and switching expertise
Strong knowledge of:
TCP/IP
VLANs
DHCP
DNS
NTP
OSPF
BGP
Network monitoring, diagnostics and performance optimisation
Incident investigation and problem management
High availability and resilient network architectures
Network segmentation and security zoning
Disaster recovery and business continuity networking
Load balancing and failover technologies

Desirable Certifications

Fortinet FCP / NSE
CCNP Enterprise
ITIL Foundation

Apply

If you are an experienced Network Engineer with strong Fortinet expertise and experience supporting enterprise network environments, we would be keen to hear from you.

Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you

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