This job posting is to integrate Pagseguro with a WPMU Dev's plugin as a new payment method.
WPMU Dev's plugin, Pro Sites, comes with 2 payment methods already integrated, Paypal and Stripe. The intention is integrating Pagseguro so Brazilian customers can pay through boletos.
Odesk wouldn't let me post this job in Portuguese but I will only consider Brazilian developers since all of Pagseguro's documentation is in Portuguese.
If you have any interest in this job please get in touch and we'll sort out any questions you might have before we hire anyone.