To Operate while in the nation, you will need to have a work allow (Autorização de Trabalho) through the Ministry of Labor. To get it, you have to be sponsored by an employer just before coming into the state. The entire process of employing non-Brazilians generally is a pretty sophisticated https://theappcode.net/profile.php?mod=space&from=space&username=ola_theus_451691&com=profile&do=profile