Junior Network Security Engineer (Freelance) Antwerp, Belgium Start: May 2026 | Duration: 612 months (extension possible) Full-time | Hybrid About the Role We are looking for a Junior Network Security Engineer to strengthen a dedicated Security Engineering team. In this role, you will help safeguard and optimize complex network environments, ensuring stability, performance, and high security standards. You will work on central network infrastructures, supporting security operations, incident handling, and continuous improvement initiatives. This is not a traditional on-site networking role instead, you will focus on centralized, large-scale network security environments. Your Responsibilities Monitor, manage, and secure central network environments Identify vulnerabilities and propose remediation measures Provide 3rd-line support for incidents and change requests Participate in security and infrastructure projects Manage and maintain network security tools and systems Support incident response and operational troubleshooting Handle and prioritize incoming security events and tickets Collaborate with cross-functional teams to improve security architecture Contribute to the development of security processes and procedures Your Profile Must-Have Initial experience in network security Experience as a network specialist (min. 1 year) Hands-on experience with: Palo Alto Networks & Panorama Infoblox Cisco / Fortinet (Fortigate) Experience with VPN solutions (GlobalProtect, Ivanti Connect Secure) Experience managing DNS & certificates (e.g. Sectigo, Harica) Strong understanding of: Network infrastructure System administration & configurations Dutch proficiency at CEFR level C2 Nice to Have Experience with F5 BIG-IP or CrushFTP Knowledge of LAN/WAN protocols, routing & switching Familiarity with Splunk or log analysis tools Experience with ITSM tools (e.g. Freshservice) Experience in public sector environments What's in It for You Work in a complex, large-scale network security environment Gain hands-on experience with enterprise-grade security technologies Be part of a collaborative and expert-driven security team Opportunity to grow your skills across multiple security domains Additional Information Freelance assignment under framework agreement Full-time engagement Hybrid working model Possibility of long-term extensions