Gateway of Payments With a Brazilian Bank

hi guys, I need a professional that make a gateway of payments with a brazilian bank (Itau or Banco do Brasil) that was integrate at my website (wordpress). I don't want to use services like Paypal, PagSeguro or Moip. I want a personal solution that able my customer to make payments with boleto or credit card without leave my sales page. Then this solution need to comunicate with teh bank websystem to complete the transations. The brazilian bank (itau or Banco do Brasil) have documentations (in portuguese) to help the developer make this gateway.