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Ralf Kohlen is a management consultant, business coach, and trainer at Quality Reinvented! since January 2013, specializing in extraordinary training and the BUSINESS. QUALITY approach. Currently serving as a partner at Modell Aachen GmbH since June 2022, Ralf Kohlen advises SMEs on the implementation of the interactive management system Q. wiki. Previously, Ralf Kohlen was the managing director at 328 Design GmbH, where leadership led the company to obtain EASA 21J certification with a team of young engineers. Ralf Kohlen also held the position of head of quality management and technology at GKN Aerospace Deutschland GmbH, responsible for restructuring the quality management system and overseeing audits and development projects. Early career roles included team leader for lightweight construction at IVM Automotive and development engineer at MK Helicopter GmbH. Ralf Kohlen obtained a Diplom-Ingenieur in mechanical engineering from RWTH Aachen University between 1990 and 1996.