congstar
Oliver Kelz has extensive experience in data and analytics within the telecommunications industry. Currently serving as Leiter Data & Analytics at congstar GmbH since May 2021, Oliver previously held the position of Chief Product Owner Business Intelligence at the same company from May 2012 to May 2021. Oliver obtained a Diplom in Wirtschaftswissenschaften from Bonn-Rhein-Sieg University of Applied Sciences, completing the program in May 2006.
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