Sworn translation in Brazil
Who signs it: tradutor público e intérprete comercial (tradutor juramentado)
Appointed by: Juntas Comerciais de cada estado
In Brazil, the translation is signed by a tradutor juramentado registered with a Junta Comercial; since 2021 they can work for the whole country and sign digitally. A translation made outside Brazil is not valid there, even if apostilled.
Soon you will be able to search here for sworn translators in Brazil.
Check the official register: Departamento Nacional de Registro Empresarial e Integração (DREI)