Network Designer / Architect (Brussels) Bridge351 is a tech company focused on excellence, innovation and tailored solutions, operating across Europe in areas like Cloud, Cybersecurity, Data and Advanced Development. About the Role We are looking for an experienced Network Designer / Architect to join a mission-critical network environment in Brussels. The successful candidate will act as a design authority for a large-scale customer access network, working alongside senior network designers and architects. The role focuses on defining and managing the hardware and software lifecycle of a Juniper- and Cisco-based Hub-and-Spoke network architecture, while ensuring high levels of security, resilience, availability, and operational integrity. Regular on-site presence in Belgium is required to support testing, validation, and implementation activities. Key Responsibilities • Contribute to the evolution of network architecture and technology solutions through strategic evaluation of new technologies, products, and design improvements. • Define and review network solutions in collaboration with architects, engineering teams, business stakeholders, customers, management, and technology partners. • Provide senior-level technical guidance throughout solution design and implementation activities. • Ensure network designs meet technical, operational, resilience, and cybersecurity requirements. • Act as a senior escalation point for complex network and infrastructure incidents. • Support operational teams with advanced troubleshooting, root-cause analysis, and resolution of critical network issues. • Work closely with technology vendors and cybersecurity teams to identify and remediate network security vulnerabilities. • Define and coordinate software upgrades, security patches, configuration improvements, and lifecycle initiatives. • Participate in cross-functional projects as a Network Subject Matter Expert and contribute to technical design reviews. • Maintain high-quality technical and network design documentation and stay current with networking and cybersecurity developments. Required Technical Expertise • Cisco Routing & Switching - senior level • Juniper SRX - extensive hands-on expertise • Juniper SD-WAN • QoS and VPN technologies • Network Security • Network architecture and design • Mission-critical network environments • Technical and design documentation • Experience with Ansible, Bitbucket, and network automation is highly valuable Experience Profile • 8+ years of relevant experience in network infrastructure, network design, or architecture. • Strong hands-on background with Cisco and Juniper technologies. • Extensive experience designing and supporting complex enterprise network environments. • Proven ability to troubleshoot complex technical issues and provide senior-level technical guidance. • Experience in environments where security, resilience, availability, and operational stability are critical. • Ability to communicate effectively with architects, engineers, cybersecurity specialists, vendors, management, and business stakeholders. • Comfortable operating both at architecture/design level and close to implementation and operational teams. Location • Brussels, Belgium Work mode • Full-time • On-site presence: Regular presence in Belgium require Departamento Cloud Services & Platforms Role Network Engineer Locations Bridge351 Brussels Remote status Hybrid