Network Designer

Harvey Nash; Brussel; Sur place; EUR 96 000 - 152 000; Temps partiel

Résumé du poste

Harvey Nash seeks a freelance Network Designer/Architect to design and manage Juniper-based hub-and-spoke networks in Brussels. The role requires on-site presence two days per week and strong expertise in Juniper SRX and Cisco routing & switching.

You will work with architects and engineers to ensure secure, resilient, and scalable network solutions. The design authority will guide lifecycle projects, coordinate with vendors, and support testing activities on the BE testbed infrastructure to

Qualifications

• Strong Juniper SRX and Cisco Routing & Switching experience.
• Ability to design and manage lifecycle projects for Juniper/Cisco hub-and-spoke architecture.
• On-site presence 2 days per week in Belgium (Brussels area).
• Support testing, validation and implementation activities on BE testbed infrastructure.

Responsabilités

• Contribute to development of network architecture and technology solutions with stakeholders.
• Provide expert design guidance ensuring security, operational, and standards conformity.
• Act as senior escalation point for complex network issues and troubleshooting.
• Collaborate with vendors and cybersecurity teams on remediation actions and patches.
• Lead design reviews for small to medium initiatives and knowledge sharing.
• Engage with customers and partners to review designs and stay updated on new technologies.
• Maintain up-to-date knowledge of network architecture and cybersecurity trends.

Connaissances

Juniper SRX

Cisco Routing & Switching

Network design & architecture

Security & resilience

Vendor liaison & testing

Description du poste

For our international client in the Brussels are we are looking for a freelance Network Designer/Architect with strong Juniper SRX and Cisco Routing & Switching experience. 2 days per week onsite presence will be required.

This position serves as the design authority for our customer access network. Together with peer designers the new person is responsible for defining and managing the hardware and software lifecycle projects of the Juniper and Cisco based Hub-and-Spoke network architecture, while ensuring the continued security, resilience, and operational integrity of this customer access network.

Due to the specific characteristics of the Belgium (BE) testbed infrastructure, regular on-site presence in Belgium is required to support testing, validation, and implementation activities.

Key Responsibilities

• Contribute to the development and evolution of network architecture and technology solutions by participating in strategic evaluations of new technologies, products, and design improvements. Collaborate closely with architects, engineering teams, business stakeholders, customers, management, and external technology partners.
• Provide expert technical guidance during solution design and implementation activities, ensuring that designs meet technical, operational, and security requirements and adhere to established standards.
• Serve as a senior technical escalation point for complex operational network issues, supporting operational teams in diagnosing, troubleshooting, and resolving network and infrastructure incidents.
• Work closely with technology vendors and cybersecurity teams to assess and address network security vulnerabilities. Define and implement appropriate remediation actions, including software updates, security patches, and configuration improvements.
• Participate in cross-functional projects as a subject matter expert, providing specialist knowledge and leading design reviews for initiatives of small to medium complexity and risk.
• Engage with customers, industry partners, and technology suppliers to review solution designs, share expertise, and maintain awareness of emerging technologies, best practices, and market developments.
• Maintain up-to-date knowledge of network architecture, infrastructure technologies, cybersecurity trends, and industry developments to support continuous improvement and long-term technology strategy.