Network Security Consultant

Salary: £109,200 - 128,700 per year

Requirements:

• Proven experience delivering security solutions in project or consultancy environments
• Strong understanding of firewall technologies, network security, and enterprise networking
• Experience working in public sector or highly regulated environments
• Must already hold active SC clearance
• Expertise with Palo Alto Strata (Next-Generation Firewalls) and Panorama

Responsibilities:

• Design, implement, configure and support Palo Alto Strata (NGFW) and Panorama environments
• Deliver firewall deployments, upgrades and migrations from legacy platforms
• Provide centralised firewall management using Panorama
• Define and implement security policies, NAT, routing, VPNs, and security profiles
• Optimise firewall performance, security posture, and rule bases
• Troubleshoot complex network and security issues
• Produce high-quality technical documentation (HLDs, LLDs, implementation and handover documents)
• Work closely with technical teams and stakeholders in public sector environments

Technologies:

• Firewall
• Support
• NAT
• Network
• Security

More:

We are a leading cyber security consultancy, focused on delivering secure and resilient network security solutions. We are seeking an experienced Network Security Consultant to support a major public sector programme, specifically in the area of Palo Alto firewall environments. This is a senior, hands-on consulting role set in a hybrid work model, based in London. We offer a competitive daily rate for a 12-month contract, outside of IR35, and the opportunity to work on transformative security uplift programmes.

last updated 32 week of 2026