Senior network security engineer

Senior Network Security Engineer

• Near Epsom | Hybrid (2 days onsite)
• Permanent | On call + occasional OOH

Why This Role?

This is a busy, engineering led role within a well established financial services environment, ideal for someone who wants to own and evolve a modern network security estate, not just maintain it.

You'll take a lead role across Palo Alto firewalls, core networking and security tooling, helping shape a more resilient, scalable and secure infrastructure.

If you're currently in a BAU heavy role and you want more ownership, more engineering and real investment in modern security, this is worth a look.

Key Responsibilities

• Own and optimise Palo Alto firewall estate
• Support LAN/WAN, Wi-Fi, remote access, and load balancing
• Monitor & respond to security incidents (SIEM/EDR)
• Improve network security, segmentation & resilience
• Manage vulnerability scanning & patching (Qualys)
• Lead/contribute to security & infrastructure projects

Tech Stack

Palo Alto | Cisco (L2/3) | Aruba | SIEM | EDR | Qualys

What We're Looking For

• Strong Palo Alto firewall experience
• Solid networking background (Cisco, LAN/WAN)
• Exposure to security tools (SIEM, EDR, vulnerabilities)
• Experience in enterprise or regulat...