Sérgio Oliveira is a seasoned marketing specialist consultant with experience since August 2019. Previously, Sérgio held various roles at Vodafone from 1998 to 2019, including application testing focused on billing and charging controls, and mobile testing, which ensured mobile devices met compliance standards. Additionally, Sérgio managed information systems for a tech support call center and provided 2nd level support and customer service in the ISP sector. Educational background includes a degree from Universidade Lusiada do Porto, completed between 1989 and 1994.
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