Valentine HELAINE is a Data Consultant at Artefact since March 2022, with previous experience as a Market Study Researcher Assistant at Ipsos and Sephora, where responsibilities included study design, client relations management, and data analysis. At Sephora, Valentine specialized in quantitative research, programming in-house studies, and coordinating post-test evaluations across multiple countries. Earlier roles included qualitative research at Orange and internships in sales at La Maison du Chocolat and customer service at Starbucks. Valentine's educational background includes a Master’s degree in Marketing and Artificial Intelligence from emlyon business school and a Licence in Management from Université Paris Dauphine - PSL, supplemented by an Erasmus semester at Universidad Pontificia Comillas.