AlgoSec Network Security Engineer — Firewall & Automation
Role Description & Technical Scope
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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Key Details
- Date Posted: 24 Oct 2026
- Location: london
- Employment: Permanent
- Workplace: Hybrid
- Domain: IT & Technology
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GCS Recruitment
Verified Tech EmployerEnterprise technology firm or security consultancy operating across the UK digital defense ecosystem.
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