AlgoSec Network Security Engineer – Contract

Company: GCS Recruitment
Apply for the AlgoSec Network Security Engineer – Contract
Location: London
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.

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Posted: October 24th, 2026