To Work from the country, you have to have a work permit (Autorização de Trabalho) within the Ministry of Labor. To obtain it, you will need to be sponsored by an employer right before getting into the country. The entire process of employing non-Brazilians generally is a quite advanced activity; https://buildwallpro.com/profile.php?name=Your_Account&from=space&user=elsa_iverson.451691