Johan Dummer, based in Amsterdam, NH, NL, is currently a Buitenschoolse promovendus at Tilburg University, bringing experience from previous roles at PostNL, CSG Wessel Gansfort and KOB Opleidingen, stichting Kader- en Ondernemersopleiding Bouwbedrijf.. Johan Dummer holds a 2010 - 2014 Master's Degree in Change Management @ University of Groningen. With a robust skill set that includes Dutch, Change Management, English, Operations Management, Interim Management and more, Johan Dummer contributes valuable insights to the industry. Johan Dummer has 2 emails on RocketReach.