Job Title: Network Security Engineer

Day Rate: €600–€700 per day

Location: Ghent

Contract Length: 3 months

Network Security Engineer - Role & Responsibilities

- Manage and optimise firewall rules across Cisco and Palo Alto environments, ensuring secure and efficient network traffic.
- Conduct application risk assessments and maintain an inventory of applications, identifying potential security vulnerabilities and risks.
- Provide network and security support across the client's IT environment, including Clarity and Microsoft 365 (O365).
- Troubleshoot and resolve network connectivity, firewall and security-related incidents, working closely with internal IT teams.
- Support the ongoing improvement of network security policies, configurations and operational processes within a large enterprise environment.

Network Security Engineer - Required Experience





- Proven experience as a Network & Security Engineer/Architect within enterprise environments.
- Strong hands-on experience with Cisco and Palo Alto firewalls, including firewall rule management, optimisation and troubleshooting.
- Experience conducting application risk assessments and maintaining application inventories.
- Good understanding of network security, firewall policies, network troubleshooting and Microsoft 365 (O365) support.
- Ability to work full-time on-site in Belgium, with minimal remote working.

Interviews: September 2026

Start Date: October 2026

How to Apply:

Apply to Gary Hargreaves at X4 Technology to learn more about the role or connect with me on LinkedIn to hear about regular job updates available with X4 Technology

📌 Network security engineer (España)
🏢 X4 Technology
📍 España