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Johannes Jentz currently serves as the Head of Global Quality & HSE at ADA Cosmetics since November 2024. Prior to this role, Johannes held various positions at Liveo Research from December 2016 to November 2024, including Head of Quality and Referent für Reklamationen und Produktoptimierung. From December 2011 to November 2016, Johannes worked as a Produktentwickler Kunstoff/Chemie at Dunmore. Johannes also gained experience as a Technischer Sachbearbeiter at Abrechnungszentrum Emmendingen between September 2010 and November 2011, and served as a Wissenschaftlicher Assistent at Hochschule Furtwangen University from October 2008 to August 2010. The career began as a Chemielaborant at Chemisches und Veterinäruntersuchungsamt Freiburg from August 2006 to September 2008. Johannes Jentz holds a degree as Technischer Fachwirt from IHK Südlicher Oberrhein and also completed Ausbildung zum Chemielaborant at Chemisches und Veterinäruntersuchungsamt Freiburg.