Sérgio Oliveira is a marketing specialist consultant with extensive experience in application testing and mobile testing at Vodafone from 1998 to 2019. In the role of application testing, Sérgio focused on application billing and charging control, ensuring accurate billing for various applications and plans. Prior to that, responsibilities included ensuring mobile devices met local standards and were technically approved. Sérgio also developed and managed an intranet for tech support, provided second-level support for an ISP, and served as a customer support agent. Education was completed at Universidade Lusiada do Porto from 1989 to 1994.
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