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# AlgoSec Network Security Engineer - Contract

- **Company:** GCS Ltd
- **Location:** London, UK
- **Contract:** Temporary contract
- **Skills:** Application Firewall, Bash Shell, Cisco PIX, Computer Networks, Network Address Translation, Intrusion Detection Systems, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Windows PowerShell, Ansible, Scripting, Firewalls (Computer Science), Palo Alto Networks, Fortinet, Firepower, Restful APIs, Terraform
- **Published:** August 29, 2026
- **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-83EC25ACC334BA63F2/

## About the Role

* 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.

## Description

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., * 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.


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