Technical Operations Network Engineer

InfoSec People Ltd; United Kingdom; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Annual bonus opportunity

Life assurance

Ongoing training and certification

Job summary

InfoSec People Ltd in the United Kingdom is seeking a Network Security Engineer to support and secure critical services across the UK. You will work across Cisco, Fortinet, and Azure networking while driving major infrastructure projects and security initiatives.

You’ll collaborate with Cyber Security teams on vulnerability remediation, contribute to performance and availability improvements, and drive automation within a secure enterprise environment.

Qualifications

• Cisco routing and firewall expertise.
• Experience with BGP, VPNs, VLANs, DNS and DHCP.
• Experience with Cisco ACI and FMG.
• Experience in regulated environments.
• Proficient in network monitoring tools (SolarWinds).

Responsibilities

• Managing and supporting WAN, LAN, Wi‑Fi and firewall infrastructure.
• Maintaining Cisco and Fortinet network environments.
• Reviewing technical designs and ensuring security best practice.
• Working closely with Cyber Security teams on vulnerability remediation.
• Managing network performance, capacity and availability.
• Escalation point for complex technical issues.
• Driving automation and operational improvements.
• Collaborating with internal stakeholders and external service providers.
• Supporting critical infrastructure services within a secure environment.

Skills

Cisco routing

Cisco switching

Cisco ACI

FMG

BGP

VPNs

VLANs

DNS/DHCP

Firewalls

SolarWinds

NAC

Scripting

IDS/IPS

Regulated env

CCNA

AZ-700

Tools

SolarWinds

Job description

We're currently supporting a leading organisation within the Utilities and Critical National Infrastructure sector in the search for a Network Security Engineer to join their expanding Technical Operations team.

This is an excellent opportunity to play a key role in maintaining and enhancing a highly secure enterprise network environment supporting critical services across the UK.

You'll work across a varied infrastructure estate covering Cisco networking, Fortinet security technologies and Azure cloud networking whilst contributing to major infrastructure projects, service improvements and security initiatives.

What You’ll Be Doing

• Managing and supporting WAN, LAN, Wi-Fi and firewall infrastructure
• Maintaining Cisco and Fortinet network environments
• Reviewing technical designs and ensuring security best practice
• Working closely with Cyber Security teams on vulnerability remediation
• Managing network performance, capacity and availability
• Acting as an escalation point for complex technical issues
• Driving automation and operational improvements
• Collaborating with internal stakeholders and external service providers
• Supporting critical infrastructure services within a secure environment

What We’re Looking For

• Cisco routing and switching expertise
• Experience with Cisco ACI and FMG
• Knowledge of BGP, VPNs, VLANs, DNS and DHCP
• Experience of network security technologies and firewalls
• Experience with network monitoring tools such as SolarWinds
• CCNA certification or equivalent
• AZ-700 certification
• NAC experience
• Network automation and scripting
• IDS/IPS technologies
• Experience within highly regulated environments
• Annual bonus opportunity
• Life assurance
• Ongoing training and certification support
• Career progression opportunities