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Marvin Durán has over 23 years of experience in customer service and management, currently serving as Jefe de servicio de atención al cliente at TELNOR since April 2000. Prior to this role, Marvin worked as a script manager at Telvista from 1997 to 2000, focusing on sales and customer service script development. Earlier experience includes serving as an analyst at Syptel from 1996 to 1997, where Marvin was responsible for information analysis and report generation for inbound and outbound call campaigns. Marvin holds a degree in Lengua y Literatura Hispanoamericana from Universidad Autónoma de Baja California, earned between 1994 and 1998, and has a support technician qualification in informática from Preparatoria Federal Lázaro Cárdenas, completed in 1994.