Security Engineer – Network & Infrastructure Security

Our client is seeking a dedicated professional to support and strengthen organizational security through incident response, change management, and project execution with a focus on network security. The role involves maintaining a stable and highly secure environment by managing central routing points, multi-layer firewalls, and complex VPN solutions while collaborating with various security teams.

• Identify vulnerabilities within the infrastructure and propose appropriate mitigation measures.
• Provide third-line support for change requests and security incidents via a ticketing system.
• Contribute actively to security projects and the continuous evolution of the network environment.
• Manage the daily operations of network security tools, including multi-layer firewalls and reverse proxies.
• Oversee the lifecycle management of DNS, domains, and public CA certificates.
• Respond to security events by identifying, categorizing, prioritizing, and investigating incoming requests.
• Collaborate with cross-functional teams to improve security infrastructure and implement standardized procedures.

• You have 1+ years of experience as a network specialist with a focus on Network Security.
• You possess hands-on experience with Palo Alto Networks and Panorama.
• You bring proficiency in using Infoblox for network identity and control.
• You have experience with GlobalProtect and Ivanti Connect Secure or Secure Access.
• You possess knowledge of network infrastructure including Cisco and Fortigate technologies.
• You have experience with bulk management of DNS and Certificates such as Sectigo or Harica CA.
• You bring a solid background in system administration and configuration specifically related to networking technology.
• You're fluent in Dutch with a C2 level of proficiency.

Nice to Haves

• Experience with F5 BIG-IP for load balancing and redirects.
• Working knowledge of Splunk for log querying and analysis.
• Familiarity with LAN and WAN protocols, including Routing and Switching.
• Experience with CrushFTP and Freshservice or similar ITSM tools.
• Previous experience working within the public sector.

• Start date: 12/05/2026
• Duration: 6 to 12 months (with option to extend)
• Work regime: Full-time
• Location: Antwerp
• Working model: Onsite
• Contract: open to both permanent employees and freelancers