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⏰ Full-time

Senior Network Engineer

Fynity
Location 📍 Holtsmere End, United Kingdom
Posted 📅 June 03, 2026
Work Type ⏰ Full-time

Position Overview

Senior Network Engineer (DV Cleared)
Hertfordshire (On-site)
Up to £60K + Benefits
Active DV Clearance Required
 
If you’re a DV Cleared Network Engineer looking for a more meaningful technical challenge, this is a chance to join a secure defence programme supporting complex, multi-site infrastructure that underpins critical operations.
 
The role
You’ll be responsible for L2/L3 support and ongoing development of a secure enterprise network, including:

Cisco routing & switching configuration and support
Fortinet firewall management (policies, VPNs, changes)
F5 load balancing / application delivery
Network changes, upgrades and deployments
Troubleshooting incidents in a secure environment
Maintaining technical documentation 
What you’ll need

Strong Cisco networking experience (CCNA/CCNP or equivalent)
Firewall experience (Cisco / Fortinet)
F5 / load balancing exposure
Strong incident resolution and troubleshooting sk...

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Job Details

Employment Type
Full-time
📊
Category
computer-and-mathematical
🏠
Work Arrangement
On-site
📍
Location
Holtsmere End, United Kingdom