We're looking for a Network Security Engineer who's passionate about defending critical systems in a fast-paced, secure environment. If you're ready to step into a hands-on, operational role with real impact - this could be the move for you.
As part of a 24 / 7 internal security response team, you'll help protect complex network infrastructure from evolving threats. You'll support incident response, work closely with SOC analysts, and fine-tune key security tools to improve overall resilience. This role isn't just reactive - you'll also help design, implement and maintain secure network solutions.
Managing and troubleshooting firewalls (Palo Alto, Checkpoint, Cisco)
Supporting proxies (Bluecoat, F5), VPNs, and load balancing
Monitoring traffic and analysing logs (using tools like PRTG, Nagios, etc.)
Responding to incidents, tuning systems, and supporting change requests
Collaborating with cyber and infrastructure teams to improve network defences
Strong networking fundamentals (TCP / IP, DNS, VLANs, routing / switching)
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Network Engineer • Stevenage, Hertfordshire, UK