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Ying Yang is a Senior Buyer at sonnen GmbH since July 2023, bringing significant experience from Huawei Technologies Duesseldorf GmbH, where Ying served as a Strategischer Einkäufer from September 2013 to July 2023. In this role, Ying expertly managed the procurement processes for temporary workers and developed a systematic approach to align billing procedures with external agencies, ensuring seamless transactions. Additionally, Ying played a crucial role in human resources category management, focusing on headhunting services and labor leasing, and successfully negotiated framework agreements with key headhunters specializing in network security. Ying Yang holds a Bachelor of Science degree in Wirtschaftswissenschaften from Paderborn University, completed between 2010 and 2013.