Seval Güllü is a Business Unit Manager at DEVA Holding, where they previously served as a Tanıtım Müdürü and CRM Manager from 2008 to 2023. They have extensive experience in the pharmaceutical industry, having worked as a Bölge Müdürü at Roche Pharmaceuticals from 1996 to 2008. Seval attended İstanbul Üniversitesi from 2017 to 2019.
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