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# Network Security Engineer (SOC)

- **Company:** InfoSec People Ltd
- **Location:** Stevenage, UK
- **Salary:** £53,000.0 - £93,000.0
- **Contract:** Permanent contract
- **Skills:** Application Firewall, Cyber Security, Domain Name System (DNS), Intrusion Detection Systems, Virtual Private Networks (VPN), Network Security, Nagios, Network Forensics, Network Monitoring, Routing, Packet Analyzer, Paessler Router Traffic Grapher, TCP/IP, Wireshark, Software Vulnerability Management, Firewalls (Computer Science), Splunk, Cisco
- **Published:** September 21, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5891624315

## About the Role

* Experience within a SOC, Network Security or Cyber Security function
 * Strong networking knowledge including TCP/IP, Routing, Switching and DNS
 * Firewall administration experience across Palo Alto, Cisco or Check Point
 * Understanding of IDS/IPS technologies
 * Experience supporting VPNs, SSL/TLS and MFA solutions
 * Exposure to network monitoring platforms such as PRTG or Nagios
 * Due to the nature of the role, candidates must be eligible for DV Security Clearance and hold British Citizenship
 * Desirable: Splunk Enterprise Security
 * Desirable: LogRhythm
 * Desirable: Darktrace
 * Desirable: Wireshark
 * Desirable: Packet capture and analysis

## Description

* Managing and supporting enterprise firewall environments
 * Investigating security incidents and network anomalies
 * Monitoring security systems across a large-scale infrastructure
 * Performing network traffic analysis and packet investigation
 * Supporting IDS/IPS technologies and secure proxy platforms
 * Maintaining VPN and secure communications technologies
 * Contributing to vulnerability management activities
 * Working within a 24/7 Security Operations environment

Technologies:

 * Cisco
 * Firewall
 * Network
 * Security
 * Splunk
 * TCP/IP
 * VPN, We are partnering with a leading organisation within the defence and technology sector to appoint a Network Security Engineer to join our 24/7 Security Operations capability in Stevenage. This is an opportunity to work within a highly secure environment, defending critical infrastructure and supporting advanced security operations across a complex enterprise network. You will join a team responsible for monitoring, protecting and improving security systems while investigating threats, responding to incidents and helping strengthen cyber resilience. The package includes a salary circa £50,000, shift allowance, annual bonus, generous pension contributions, paid overtime, up to 15 flexi leave days, enhanced family benefits, subsidised meals and free parking.


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