For one of our major clients in Luxembourg, we are currently looking for an experienced Network Architect (Freelance Only) to support strategic network architecture and transformation initiatives within a complex Cisco environment. Your main responsibilities as a Consultant Provide high-level expertise on network architecture and design Assess existing network environments and propose optimization strategies Design scalable, secure and resilient Cisco network solutions Deliver technical guidance and architectural recommendations to operational and project teams Support complex network incidents, transformations and infrastructure changes Participate in network modernization and continuous improvement initiatives Ensure alignment with best practices, security standards and operational requirements Your profile Strong experience as a Network Architect or Senior Network Engineer Excellent knowledge of Cisco environments Proven experience in network design, assessment and transformation projects Ability to operate in complex enterprise infrastructures Strong communication and stakeholder management skills You are fluent in German. French or English is required If at the end of the recruitment process, your application is successful, you will be required to provide an extract from your criminal record in accordance with the requirements related to our PSF status. What is offered A dynamic and innovative work environment Training programs and ongoing support Personalized and individual career development with a dedicated point of contact A wide variety of assignments thanks to a rich and diverse client portfolio An attractive salary package aligned with your skills and experience Additional fringe benefits Regular events to get together and share great moments as a team Take the opportunity to join the "NSI family," where human values remain at the heart of our priorities As a signatory of the diversity charter, this position is open to everyone, without distinction of origin, nationality, gender, age, disability, religion, or sexual orientation. Since 2017, NSI Luxembourg PSF has been operating as a provider of high value-added IT services (Agile application development, ERP, cloud infrastructure, support, AI, etc.) for clients in both the private and public sectors. We offer a flexible approach combining consultancy services and fixed-price projects, enabling us to accurately address each client's specific challenges.