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Michael Kirschsiefen is a seasoned professional specializing in business intelligence and controlling, with extensive experience across multiple sectors. Currently serving as a Business Intelligence Architect at nox NachtExpress since July 2019, Michael focuses on designing and operating BI solutions, data modeling in SQL Server, and BI report creation. Concurrently, Michael operates Kirschsiefen Consulting since April 2014, providing consultancy in controlling and BI systems, as well as ERP implementation. Previous roles include consultant positions at areto consulting gmbh and atlantis its GmbH & Co. KG, where expertise in reporting systems and SAP was honed. Michael has also held positions as Business Unit Controller at DB Systel GmbH and as Head of Commercial Services at Reuter Technologie GmbH, among others, demonstrating a robust background in financial processes, reporting, and system administration. Educationally, Michael holds a Diplom Betriebswirt in Accounting and Finance from Cologne University of Applied Sciences.