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Marc Grefen is currently employed at envelio as an Engineering Manager Data Integration. Prior to this role, Marc worked at ATHION GmbH where Marc completed their Master Thesis, served as a Working Student, and held an Internship position. Marc's background includes experience in Business Development and Organization at Westnetz GmbH where Marc pursued a Dual Course of Study in Industrial Engineering and Management. Marc holds a Master of Science degree in Renewable Energy Management from Cologne University of Applied Sciences and a Bachelor of Engineering degree in Industrial Engineering and Management from Hochschule Osnabrück. Additionally, Marc completed an Ausbildung in Industriekaufmann from IHK Osnabrück.