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André Guerreiro has extensive work experience in the telecommunications industry. André began their career in 1993 with Claro Brasil, where they held the roles of Marketing Intelligence Director and Chief Analytics Officer. Concurrently, they also worked at Net Serviços as a Marketing Intelligence Director. The provided information does not specify the end dates for any of these roles.

André Guerreiro completed their education as follows:

- From 1998 to 1999, they pursued an MBA in Business at Ibmec.

- In 1992-1993, they obtained a post-graduation degree in Economics from UERJ.

- From 1986 to 1991, they completed a University degree in Economics at UERJ.

- In the years 1982-1985, they received a secondary education at ENCE with a focus on Statistics.

- Lastly, from 1978 to 1981, they attended Colegio Metropolitano for their primary education. The field of study is not mentioned.