Senior Network Security Engineer
Role Description & Technical Scope
We are looking for an experienced Senior Network Engineer to design, implement, manage, and secure enterprise network infrastructure across LAN, WAN, WLAN, SD-WAN, data center, and cloud environments. The role focuses on network availability, security, performance optimization, and troubleshooting complex network issues.
Key Responsibilities:
- Design, configure, and maintain enterprise LAN, WAN, WLAN, and SD-WAN infrastructure.
- Manage routers, switches, firewalls, load balancers, and VPN solutions.
- Implement routing and switching protocols, including BGP, OSPF, VLANs, and STP.
- Manage network security, including firewalls, VPNs, NAC, and IDS/IPS.
- Monitor network performance, troubleshoot incidents, and perform root cause analysis.
- Support Azure, AWS, hybrid cloud connectivity, and data center networking.
- Execute network upgrades, migrations, capacity planning, and disaster recovery activities.
- Maintain network documentation and collaborate with infrastructure, cloud, and cybersecurity teams.
- Network Infrastructure Management: Expertise in LAN, WAN, WLAN, SD-WAN, routing, and switching.
- Network Security: Hands-on experience with firewalls, VPNs, NAC, IDS/IPS, and security policies.
- Cloud & Data Center Networking: Knowledge of Azure, AWS, hybrid connectivity, and data center architecture.
- Troubleshooting & Performance Optimization: Strong skills in network diagnostics, root cause analysis, and performance monitoring.
Qualifications & Experience:
- Bachelor's degree in IT, Computer Science, or a related field.
- 8-10 years of relevant experience in enterprise networking and network security.
- Strong troubleshooting and analytical skills.
- CCNP, CCIE, Fortinet, Palo Alto, or cloud networking certifications preferred.
- Knowledge of network automation tools such as Python and Ansible is an advantage.
Ready to apply for this cyber security position?
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Key Details
- Date Posted: 23 Oct 2026
- Location: United Kingdom
- Employment: Permanent
- Workplace: Hybrid
- Domain: Networks & Systems
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Verified Tech EmployerEnterprise technology firm or security consultancy operating across the UK digital defense ecosystem.
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