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Cyberr®

Network and Security Engineer

Hybrid

Brussels, Belgium

Mid level

Freelance

31-10-2025

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Skills

Network Security Firewalls ServiceNow GitLab Ansible Architecture Network Architecture Project Management Terraform

Job Specifications

Network and Security Engineer

Location : Brussels

Languages : English AND French or Dutch

Responsibilities:

Design, implement, and maintain secure network architecture.
Configure, patch, and manage firewalls, proxies, and other network security devices.
Troubleshoot network issues and application flow problems.
Represent the network team in internal/external technical meetings and provide clear reporting.
Create technical documentation, manuals, and procedural guides.
Support network segmentation and secure Internet-accessible application services.

Profile:

Bachelor’s degree or higher.
Minimum 5 years’ experience in complex, large-scale IT environments.
Deep knowledge of network protocols: IPv4/IPv6, HTTP(S), FTP(S), SMTP, SSH, SSL/TLS, BGP, HSRP, VRRP.
Hands-on experience with:
Palo Alto PanOS: firewalls, IDS/IPS, decryption, sandboxing (PCNSE certification preferred)
Cisco: Umbrella, Wi-Fi, ISE, IPSec
Algosec: Firewall Analyzer & Fireflow, ServiceNow integration
Automation Tools: Terraform, GitLab, Ansible
Daily network operations: configuration changes, patching, troubleshooting, and optimization.
Ability to translate security policies into actionable architecture and procedures.
Fluent in technical English; French or Dutch mandatory.
Strong documentation, project management, and team collaboration skills.
Network segmentation and secure Internet service deployment in financial institutions.
Involvement in requirement analysis, proof-of-concept, product selection, deployment, and documentation.

Interested in this opportunity? Feel free to apply or send us your updated CV at anne-catherine.son@cyberr.ai and morgane.zimmer@cyberr.ai

About the Company

Cyberr is the global marketplace dedicated to bridging the cybersecurity talent gap. We connect businesses of all sizes—from dynamic startups to leading Fortune 100 enterprises—with top-tier cybersecurity experts from around the world. Our platform fosters a trust-based environment where companies and cybersecurity professionals collaborate seamlessly to address critical security challenges and unlock innovative solutions. Know more