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Sina Serena Matter (Arzner) is an experienced professional in office management and sales operations, currently serving as Office Manager Switzerland and Sales Operation Manager at Bibliotheca since January 2022. Previously, Sina held various roles at Bibliotheca Switzerland AG from July 2013 to January 2022, including Office Manager/CSR and Executive Assistant, where responsibilities encompassed executive support and human resources. Prior to this, Sina gained valuable experience as a Personal Assistant at Roland Berger Strategy Consultants from July 2008 to June 2013.