> Markdown version of [/jobs/ext/4679740-network-security-engineer](https://www.wearedevelopers.com/jobs/ext/4679740-network-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Security Engineer - **Company:** VIQU Ltd - **Location:** Birmingham, United Kingdom - **Salary:** £44,852 - **Contract:** Temporary contract - **Skills:** Complex Networks, Computer Networks, Virtual Private Networks (VPN), Network Security, Network Layer, Routing, Identity Services Engine, Load Balancing, Firewalls (Computer Science), Check Point Firewalls, Cisco - **Published:** November 12, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5961624616 ## About the Role * Strong experience with enterprise network security technologies * Experience designing and supporting Layer 2 and Layer 3 VPNs * Strong understanding of routing and switching technologies * Strong hands-on experience with Check Point Firewalls * Proven expertise in F5 Load Balancers (LTM/GTM) * Experience administering and supporting Cisco Identity Services Engine (ISE) * Excellent troubleshooting and incident management skills ## Description * Lead the technical resolution of complex network security incidents and changes * Develop secure logical designs across Firewalls, Load Balancers, Layer 2 VPNs, and Layer 3 VPNs * Use our expertise in Check Point Firewalls, F5 Load Balancers, and Cisco Identity Services Engine (ISE) to support, secure, and optimise enterprise network environments * Analyse network traffic, troubleshoot congestion, and optimise performance * Apply technical governance to ensure project deliverables transition seamlessly into live service * Monitor and continually improve network performance, resilience, and security Technologies: * Cisco * Support * Network * Security, We are seeking a Network Security Engineer for an initial 6-month contract in London, working on a hybrid basis. You will help lead the design and support of critical network security solutions and drive technical excellence to ensure the resilience, performance, and security of our enterprise infrastructure. This role uses Check Point Firewalls, F5 Load Balancers, and Cisco ISE across a global enterprise.