Network Security Engineer - Critical Infra & Growth

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

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.