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Network and Security Specialist

VIQU IT Recruitment
Ec2R6Ad, EC2R 6AD, United Kingdom
Last week
Job Type
Permanent
Work Pattern
Full-time
Work Location
On-site
Seniority
Senior
Education
Degree
Posted
19 May 2026 (Last week)
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Network and Security Specialist
London (Moorgate) – Onsite – Permanent
Competitive Salary

VIQU have partnered with a global trading organisation looking to hire a Network and Security Specialist to take ownership of network and cyber security across a critical London-based environment. This is a hands-on, technically led role where the Network and Security Specialist will be responsible for protecting systems, ensuring high availability, and strengthening security posture while supporting day-to-day operations and future growth.

Key Responsibilities:

• Design, implement, and maintain secure network and security infrastructure to meet current and future business needs.
• Own the full network and security lifecycle, maintaining uptime close to 99.99%.
• Monitor, investigate, and respond to security incidents using SIEM tools, Sophos MDR, and threat-hunting techniques.
• Configure and manage firewalls, VPNs, IDS/IPS, web and email security solutions.
• Maintain high patching and vulnerability remediation standards, including CVE management.
• Coordinate annual third-party penetration testing and lead remediation based on risk and CVSS scoring.
• Investigate cyber incidents, perform forensic analysis, and implement rapid mitigation actions.
• Maintain and upgrade network switches, routers, and security devices.
• Define, maintain, and enforce security policies, disaster recovery plans, and contingency procedures.
• Create and maintain technical documentation and Jira tickets.
• Support infrastructure and service desk teams when required and actively upskill IT colleagues.
• Manage suppliers, carriers, SLAs, and assist with IT budget tracking and spend control.

Key Requirements:

• Expert knowledge of Checkpoint firewalls, Cisco routers and switches, and Cisco ISE.
• Strong experience with Zscaler Internet Access, Zscaler Private Access, Splunk, and enterprise SIEM tooling.
• Proven background in network security, threat prevention, and incident response.
• Cisco CCNA and CCNP certifications.
• Experience with data centre colocation and vendor/carrier management.
• Strong PowerShell and scripting capabilities.
• Experience across Windows Server and Linux environments, Active Directory, Exchange (on-prem), VMware, VxRail, Rubrik, and RecoverPoint.
• Excellent communication skills with a flexible, hands-on approach and strong attention to detail.

Network and Security Specialist
London (Moorgate) – Onsite – Permanent
Competitive Salary

Apply today to speak with VIQU in confidence or contact Belle Hegarty via the VIQU website
Know someone exceptional for this position? Refer them and receive up to £1,000 if successful (terms apply).
Follow us on LinkedIn@VIQU IT Recruitment for more exciting opportunities.

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