Marjolein de Vlieg-Hartman is an experienced professional currently serving as Doelgroep- en Propositie expert and Product Owner Superieure Klantbeleving at Coöperatie VGZ since October 2017. Previous roles include management and team coaching at KPN from November 2005 to July 2017, focusing on leadership and behavior to enhance customer experience. Marjolein has held various management positions at KPN, including Manager Marketing for Wholesale Mobile and Senior Marketing Manager, where responsibilities encompassed market opportunity analysis, team leadership, and commercial strategy execution. Marjolein holds a Master's degree in Business Administration from Erasmus University Rotterdam and a Bachelor's degree in Hotel Management from Zuyd Hogeschool.