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Jiejie Tong is a skilled professional with experience in data analysis, supply chain management, and product management. At windeln.de SE, Jiejie serves as a Product Manager & Data Analyst, overseeing product profiles and conducting pre-product research. Prior to this, at Messe Dortmund GmbH, Jiejie was a Data Analysis Consultant, working on strategies to achieve team goals. With a background in Quality Engineering, Jiejie has a keen eye for detail and analytical problem-solving skills.