Network Security Engineer (NOC)

Fynity; England; On-site; GBP 46,000 - 55,000; Full time

Job summary

A leading technology firm in the UK is looking for a Network Security Engineer (NOC) to protect and optimise critical network infrastructure. You will work in a 24x7 ISR and NOC environment, supporting incident triage and collaborating to enhance network security. The ideal candidate must have strong skills in TCP/IP, Cisco, and firewall management, with active DV clearance. This is a hands-on position with a competitive salary and benefits.

Qualifications

• Strong understanding of TCP/IP, DNS, routing, switching, VLANs, and load balancing.
• Experience as a NOC or Network Security Engineer in a 24x7 setting.
• Hands-on with Cisco, Checkpoint, and Palo Alto firewalls.
• Familiar with IPS/IDS, SSL decryption, and deep packet inspection.
• Experience managing Bluecoat or F5 proxies.
• Knowledge of IPSec, SSL/TLS, VPNs, 2FA, and DMZ architectures.
• Comfortable with monitoring tools like PRTG or Nagios.

Responsibilities

• Support incident triage with the SOC and design secure network solutions.
• Collaborate across teams to identify vulnerabilities and improve performance.
• Optimise NOC tools and standardise security platforms for resilience.

Skills

TCP/IP

DNS

Routing and Switching

VLANs

Load Balancing

Cisco

Checkpoint

Palo Alto

IPS/IDS

Monitoring Tools (PRTG, Nagios)

Tools

Cisco

Checkpoint

Palo Alto

Bluecoat

F5

Darktrace

Splunk

LogRhythm

Job description

Overview

Network Security Engineer (NOC)

Salary: Up to £55,000 + shift allowance + bonus
Security Clearance: Must hold active DV clearance.

Join a forward-thinking team as a Network Security Engineer (NOC), helping to protect and optimise critical network infrastructure. You’ll work within a 24x7 ISR and NOC environment, ensuring network reliability while defending against evolving threats.

Responsibilities

• In this hands-on Network Security Engineer role, you’ll support incident triage with the SOC, design and implement secure network solutions, and collaborate across teams to identify vulnerabilities and improve performance.
• You’ll also help optimise NOC tools and standardise network security platforms for greater resilience.

What you’ll bring

• Strong understanding of TCP/IP, DNS, routing, switching, VLANs, and load balancing
• Experience as a NOC or Network Security Engineer in a 24x7 setting
• Hands-on with Cisco, Checkpoint, and Palo Alto firewalls
• Familiar with IPS/IDS, SSL decryption, and deep packet inspection
• Experience managing Bluecoat or F5 proxies
• Knowledge of IPSec, SSL/TLS, VPNs, 2FA, and DMZ architectures
• Comfortable with monitoring tools like PRTG or Nagios

Desirable

• Experience with Darktrace, Splunk, or LogRhythm; packet capture analysis; SOC collaboration; and troubleshooting network flows.

If you’re a Network Security Engineer (NOC) who thrives in fast-paced, complex environments, this is a great chance to make a tangible impact on network security and operational excellence.