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Guilherme Portela has extensive experience in the technology sector, currently serving as a Senior Business Specialist at TIM Brasil since January 2021, focusing on Big Data and Data Warehouse. Prior to this role, Guilherme worked at IBM from August 2007 to December 2020 as a Project Manager, where responsibilities included managing IT project teams, overseeing SLAs and performance indicators, and leading various Corporate Data Warehouse projects. Guilherme's earlier experience includes roles as a Consultant at ALEXANDER LUCINSKY and Probank Software e Consultoria LTDA, where ETL processes were developed to meet client demands. Educational credentials include a Degree in Computer Engineering from Universidade Santa Úrsula and a degree in Technology Management in Computing from Universidade Federal Fluminense, complemented by studies at KGIC Toronto in 2008.