Job Title: Senior Firewall & Network Security Engineer

Location: London

Position Type: Contract

Overview

We are seeking an experienced Senior Firewall & Network Security Engineer with deep expertise in the Fortinet ecosystem to join our infrastructure security team. In this role, you will design, manage, and continuously improve enterprise‑grade firewall infrastructure, lead firmware upgrade cycles, drive automation initiatives, and serve as the subject‑matter expert on FortiGate platforms — including the 1500D and 1800F series. You will work cross‑functionally with network, cloud, and compliance teams, operating within ITIL‑aligned change management processes.

Key responsibilities

• Own end‑to‑end management of enterprise FortiGate firewalls (1000‑series and above) across production and non‑production environments, including VDOM configuration, HA setup, and policy routing.
• Plan and execute FortiOS major‑version...