Sébastien CHHANN is a seasoned digital marketing professional specializing in tracking and analytics, currently serving as Consultant Confirmé Tracking & Analytics at Epsilon France since February 2024. Prior to this role, Sébastien worked as Expert Tracking & Traffic Senior at HEROIKS, where expertise included adserving, attribution analysis, and data visualization. Sébastien's experience also encompasses a position at OMD France as Responsable Tracking, focusing on onsite analytics and pixel strategy deployment across Europe for various high-profile clients, including Nissan and Levi's. Additional experience includes roles at IZEOS SAS as Webmaster and Yakarouler as Assistant Webmarketing. Sébastien holds multiple degrees from the Université Paris-Est Créteil in e-commerce and international commerce, along with a certification in GDPR implementation from CCI Formation Grenoble.