Iunes has been executive at Itau's investment banking unit and partner at asset manager EB Capital. He has also been on the board of steelmaker Gerdau SA and Banco ABC Brasil SA.

Iunes will report to Eduardo Cruz, BCMA head in Latin America, and Marcelo Marangon, Citigroup CEO in Brazil.

(Reporting by Tatiana Bautzer; editing by Jason Neely)