Network Security Engineer On Site

Reference: 7yzssxmgyglbcyeqimyh

We are seeking a Network Security Engineer to provide on-site technical expertise across network protection, infrastructure security, and operational resilience. This role will suit an experienced professional who can work confidently with stakeholders, investigate complex issues, and implement secure solutions in a fast-paced environment. You will be responsible for maintaining the confidentiality, integrity, and availability of network services while ensuring security controls remain effective and aligned with organisational policies.

Key duties will include configuring, monitoring, and troubleshooting firewalls, VPNs, intrusion prevention systems, secure web gateways, network access controls, and related security technologies. You will analyse security alerts, investigate incidents, support vulnerability remediation, and contribute to threat detection and response activities. The role will also involve reviewing network architecture, identifying potential weaknesses, applying secure configuration standards, and supporting changes, upgrades, and technology deployments. Accurate documentation of network diagrams, procedures, incidents, and technical recommendations will be essential.

You will work closely with infrastructure, systems, service desk, and governance teams to resolve security issues and improve operational processes. The successful candidate will have proven experience in network security engineering, including hands-on knowledge of TCP/IP, routing and switching, firewalls, authentication protocols, VPN technologies, and network monitoring tools. Experience with cloud networking, segmentation, zero-trust principles, vulnerability management, and security information and event management platforms would be advantageous. Relevant professional certifications or equivalent practical experience are desirable. Strong analytical and communication skills are required, together with the ability to prioritise tasks, explain technical risks clearly, and remain calm when responding to incidents. As this is an on-site position, a professional, collaborative approach and willingness to work directly with colleagues and technical teams are essential.

COMPETITIVE SALARY
Added 08/09/2026
Reference: 7yzssxmgyglbcyeqimyh

Network Security Engineer On Site

London, England, United Kingdom Permanent Network Security

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