Julien Massardier is a seasoned data science professional currently serving as a Senior Data Scientist at Perpetua, where responsibilities include overseeing prediction accuracy for the Prism project and maintaining contracts between Data Science and Engineering teams. Previous roles include Data Scientist and Interim Data Science Team Lead at Perpetua, with significant contributions to revenue-maximizing algorithms and automation processes. Prior to this, Julien held positions at Kenshoo as an In-Market Data Scientist and Data Analyst, as well as in various paid search roles at ODIGEO, Venere.com, and Populis. Julien holds a Master's Degree in Business Intelligence from Universitat Oberta de Catalunya and a Master's Degree in E-Commerce from Montpellier Business School.