Senior Network Security EngineerNear Epsom Hybrid (2 days onsite)Permanent On call (1 in 3 weeks) Alternating early / late shifts (7am - 3:30pm and 9:30am - 6pm)This is a busy, hands on engineering role within a large, regulated financial services environment, ideal for someone who wants to own and evolve a modern network estate rather than sit in a purely BAU or consultancy position.A large programme of work is kicking off soon, so you''ll be stepping into a high impact role, contributing to real change across network and security infrastructure.You''ll take a lead role across Palo Alto firewalls, core networking and security tooling, helping shape a resilient, scalable and secure environment.Key ResponsibilitiesOwn and optimise the Palo Alto firewall estateSupport core networking (LAN/WAN, Wi-Fi, remote access, load balancing)Monitor and respond to security incidents (SIEM / EDR)Improve network security, segmentation, and resilienceManage vulnerability scanning and patching (Qualys)Lead and contribute to network and security projectsProduce clear, accurate technical documentationTech StackPalo Alto Cisco (L2/3) Aruba SIEM EDR QualysWhat We''re Looking ForMinimum 5 years'' experience in networking (essential)Strong hands-on experience with networking fundamentals and technologies (Cisco, LAN/WAN)Exposure to security tools or environments (SIEM, EDR, vulnerability management), but deep cyber expertise is not requiredDesire to grow into a Network Security SME - this role ..... full job details .....