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AlgoSec Network Security Engineer - Contract

GCSLondon🇬🇧United KingdomPosted 27 Aug 2026

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
Hybrid
Location
London, United Kingdom
AnsibleBashPowerShellPythonRESTTerraform

Job Description

Network Security Engineer (AlgoSec)

We are seeking an experienced Network Security Engineer with strong AlgoSec and enterprise Firewall experience to join a growing security team.

This is a hands-on role focused on Firewall policy management, security governance, automation and compliance across complex multi-vendor environments.

Key Responsibilities

  • Administer and support AlgoSec Security Management Suite.
  • Manage Firewall policy reviews, optimisation, risk analysis.
  • Support FireFlow, Firewall Analyser, ObjectFlow and AppViz.
  • Analyse application connectivity and network traffic flows.
  • Manage Firewall changes, exceptions and security incidents.
  • Automate security processes using Scripting and REST APIs.
  • Support security governance, audit and compliance activities.
  • Work with infrastructure, security and engineering stakeholders.

Required Experience

  • Strong hands-on AlgoSec experience.
  • Extensive enterprise Firewall experience with Palo Alto, Fortinet, Cisco ASA/Firepower and/or Check Point.
  • Strong knowledge of Firewall administration, NAT, VPN, segmentation and IDS/IPS.
  • Experience with security governance, compliance and ITIL processes.
  • Strong Scripting skills in Python, PowerShell and/or Bash.
  • Experience with REST APIs and automation tools such as Ansible or Terraform.

Please send across an updated CV if this position is of interest

GCS is acting as an Employment Business in relation to this vacancy.

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