Diana Costelha

Diana Costelha is an experienced professional in operations management, currently serving as Executive Director Operations and Country Director for South Africa at TTEC since January 2024. Prior to this role, Diana held various positions at Webhelp, including Account Director and Operations Director from July 2016 to December 2023. Previous experience includes working as a Business Consultant and Operations Manager at Merchants, where Diana oversaw BPO-related business units and was a member of the Merchants South Africa Operations Executive. Diana's extensive career also features roles at Mobile Telecommunications Network, where responsibilities included managing service delivery and customer satisfaction, and at RCI as a Global Sales Team Leader, demonstrating a strong background in operational performance, team leadership, and client relationship management.