To Operate while in the nation, you have to have a work allow (Autorização de Trabalho) through the Ministry of Labor. To obtain it, you need to be sponsored by an employer in advance of getting into the state. The process of hiring non-Brazilians can be quite a pretty intricate https://lintense.com/userinfo.php?action=view&name=Your_Account&do=profile&user=maxwell_veal.451691