Thiago joined the youth program of his local club Sport Club Internacional at the age of 12. He made his professional debut with the club in 2003, before moving to Ginásio Pinhalense de Esportes Atléticos the following year. He had a trial with the Fire in the summer of 2004 and joined the club before the 2005 MLS season. Thiago had a successful debut campaign, scoring six goals and seven assists. Thiago was released by the Fire in September 2007.