Network Security Engineer (NOC)

Pertemps; Stevenage; On-site; GBP 45,000 - 55,000; Full time

Job summary

A leading recruitment agency is seeking a Network Security Engineer (NOC) to protect and optimise critical network infrastructure. This hands-on role involves incident triage, designing secure solutions, and improving network performance in a fast-paced environment. An active DV clearance is required. The position offers a competitive salary and shift allowance.

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.

Responsibilities

• Support incident triage with the SOC.
• Design and implement secure network solutions.
• Collaborate across teams to identify vulnerabilities and improve performance.

Skills

Understanding of TCP/IP

Experience as a NOC or Network Security Engineer

Hands-on with Cisco firewalls

Knowledge of SSL/TLS and VPNs

Comfortable with monitoring tools like PRTG

Tools

Cisco

Checkpoint

Palo Alto firewalls

Bluecoat

F5 proxies

Splunk

Darktrace

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.

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.

Responsibilities

• Support incident triage with the SOC
• Design and implement secure network solutions
• Collaborate across teams to identify vulnerabilities and improve performance
• Help optimise NOC tools and standardise network security platforms for greater resilience

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

Desirable

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

How to apply

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.

The People Network is an employment agency and will respond to all applicants within three - five working days. If you do not hear within these timescales please feel free to get in touch.