Senior Platform Architect – Network & Security

Our client, a major organization in the public transport sector, is seeking an expert to define and maintain the coherence of their network and security architectures. This role involves technical leadership on strategic initiatives, ensuring alignment with regulatory standards like NIS2 and corporate transformation goals.

• Define the technological roadmap and reference architectures for network and security platforms.
• Ensure architectural compliance with security requirements, resilience standards, and NIS2 regulations.
• Lead technical design for strategic projects by producing High-Level (HLD) and Low-Level Designs (LLD).
• Evaluate emerging technologies to propose evolution trajectories and rationalize the IT landscape.
• Act as a technical reference for build and run teams while facilitating knowledge transfer.

• 8+ years of experience in network architecture including IP Routing , Switching , MPLS , HSRP/VRRP , and WiFi .
• 8+ years of experience defining technological roadmaps and reference architectures .
• 8+ years of expertise with Cisco ACI , Express Route , and Netskope .
• 8+ years of experience in automation and Project Management within technical environments.
• 5+ years of experience with Palo Alto Firewalls , WAF , VPN , and Proxy technologies.
• 5+ years of experience with Algosec and Load Balancing solutions.
• 3+ years of experience in scripting for network tasks.
• You possess the flexibility to handle occasional night and weekend on-site operations.
• You are native or bilingual in Dutch or French with professional working proficiency in English .

Nice to Haves

• Experience with AI applications within the domain of network security.
• Previous professional experience within the public sector.
• Knowledge of NIS2 requirements and risk management programs.

• Start date: 04/01/2027
• Duration: 12 months
• Work regime: Full-time
• Location: Brussels
• Working model: Hybrid (3 days per week on-site)
• Contract: open to both permanent employees and freelancers