Since I am new at PrepLounge I have just come across your question. There are certainly good opportunities for experienced hires in Brazil. The entry level would depend on your experience and the firm, but my personal experience is that you can usually skip the first level subject to your performance during the interviews.
I had 3 years of professional experience when I decided to move to consulting (firstly Accenture, then Stratey& and BCG). In case you are still interested, please reach out and we can set some time (free of charge) to discuss your questions and opportunities.