Information Security

Senior Network Security Infrastructure Engineer

McGregor Boyall

London · Greater London · United Kingdom

Overview

In this role you will lead the design, automation and operation of secure network infrastructure across cloud and on‑prem environments. You will drive infrastructure modernisation and support cloud transformation while aligning with security strategy in a highly regulated setting. You will collaborate with stakeholders to deliver resilient, scalable networking solutions that meet compliance requirements. This is an opportunity to shape the security and networking backbone for a financial services organisation.

Responsibilities
  • Lead the design, automation and operation of secure network infrastructure across cloud and on‑prem environments
  • Drive infrastructure modernisation and cloud transformation initiatives
  • Contribute to the organisation's security strategy within a highly regulated context
Key requirements
  • 5+ years' Fortinet experience
  • Strong AWS networking expertise (Cloud WAN, Transit Gateway, Direct Connect, WAF, Firewall Manager)
  • Terraform and Infrastructure as Code
  • Python and/or Ansible automation
  • Network security architecture and engineering
  • Strong knowledge of BGP, OSPF, TCP/IP and enterprise networking
  • Fortinet
  • AWS networking (Cloud WAN, Transit Gateway, Direct Connect, WAF, Firewall Manager)
  • Terraform
  • Infrastructure as Code
  • Python
  • Ansible

Reference: WJ-747_31291766 · Posted 13 Nov 2026, 04:57 AM

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