We are looking for an experienced Senior IP Network Architect/Engineer to support our client with the design, implementation, and operation of advanced network infrastructures across multi‑site environments and data centers. You will bring strong expertise in L3 IP networks, Multi‑VRF, VRF‑Lite, IP/MPLS, switching, cyber security, and wireless technologies, while providing architectural guidance, operational support, and vendor management. Key Responsibilities Network Design, Implementation & Operation Deliver design, implementation, and operational services for: L3 IP Networks, Multi‑VRF, VRF‑Lite, IP/MPLS, Switching (campus, multi‑VLAN), Cyber security technologies (Firewall, DMZ, authentication, IPS, IPsec VPN, DMVPN, FLEXVPN), Wireless infrastructures with lightweight access points and central switching. Architecture & Testing Define optimal state‑of‑the‑art network architectures balancing capacity, reliability, redundancy, and cost. Define and execute comprehensive test plans for new technologies and architectures. Manage vendors to ensure proper implementation of chosen architectures. Coach internal teams through technical workshops, procedures, and knowledge transfer during the introduction of new technologies. Technical Management of Existing Networks Define technical rules, procedures, and standards to optimize daily operations (remote configuration, inventory, backup, alarming, NMS, …). Provide technical support to operational teams for daily management and network expansion. Analyze complex fault scenarios and define preventive measures, often in collaboration with cross‑functional teams. Manage vendors during network extensions and complex incident resolution to ensure maximum network reliability. Technical Requirements The consultant should have strong expertise in: L3 IP Networks, IP/MPLS, Multi‑VRF, VRF‑Lite Switching: campus design, multi‑VLAN Cyber security technologies: Firewall, DMZ, IPS, authentication, IPsec VPN, DMVPN, FLEXVPN Wireless: central switching, lightweight access points Several years of experience as a Senior IP Network Engineer Strong operational and architectural understanding of large multi‑site infrastructures Willingness to continuously refine and broaden knowledge Knowledge of Nokia (SR‑OS) routers is an asset Profile Bachelor’s or Master’s degree in Electronics, ICT, Telecommunications, or equivalent practical experience Autonomous, structured, and able to assess risks accurately Customer‑oriented, stress‑resistant, flexible, and approachable Strong communication skills with colleagues, departments, vendors, and service providers Fluent in Dutch, French, and English Holder of a B driving license Interested or know someone who fits? Let’s connect! You will work at leading enterprises across Belgium, depending on your interests and preferred way of working. At Brainbridge, we cover the full IT landscape and aim for the absolute match — technically and personally. If you are dynamic, passionate about networks, and eager to contribute your expertise: Join the Brainbridge success story and help shape tomorrow’s digital infrastructures! Looking forward to welcoming you to the world of Brainbridge!