Senior Network Security Engineer — Onsite in Guildford

N Consulting Ltd; Greater London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A leading network security firm is looking for a Senior Network Security Engineer to manage and support network security technologies. You will need to have extensive experience with Cisco ISE, ASA/FTD firewalls, and Check Point technologies. Responsibilities include managing security infrastructure operations, designing secure network architectures, and ensuring compliance with standards. This role is based onsite in Guildford, requiring excellent communication skills and the ability to lead projects.

Qualifications

• 10+ years of strong experience in enterprise Network Security.
• Experience in high-availability environments.
• Track record of leading installation, upgrade, and decommission projects.
• Experience in handling major incidents and root cause analysis documentation.

Responsibilities

• Manage, configure, and troubleshoot Cisco ISE and firewalls.
• Perform installation and decommissioning of security devices.
• Support in designing secure network architectures.
• Troubleshoot network security issues and perform root cause analysis.
• Ensure compliance with security standards and conduct audits.

Skills

Cisco ISE

Cisco ASA/FTD

Check Point R80.x

F5 APM

Cisco Switching/Routing

Packet capture tools (Wireshark, tcpdump)

Cloud networking (AWS/Azure)

Automation/Scripting (Python, Ansible)

Job description

A leading network security firm is looking for a Senior Network Security Engineer to manage and support network security technologies. You will need to have extensive experience with Cisco ISE, ASA/FTD firewalls, and Check Point technologies. Responsibilities include managing security infrastructure operations, designing secure network architectures, and ensuring compliance with standards. This role is based onsite in Guildford, requiring excellent communication skills and the ability to lead projects.