Our client is looking for a Senior Network Engineer to contribute to the implementation of network segregation and to keep the LAN infrastructure up to date. The mission focuses on maintaining and evolving a complex network environment based on Extreme Networks, supporting security initiatives, improving OT network resilience, and contributing to infrastructure projects such as DRP and Lynx8. The consultant will work in a hybrid setup, with at least 3 days per week on-site in Brussels and potentially on production sites in Wallonia, depending on business needs.