cash app / paypal -- Scope project

HI!! we are looking for someone to partner with us to develop an app similar for www.cash.app. within its own robust platform like paypal.com. To dont need paypal, square, or similar but be its own payment gateway. This in android and ios. We need it to be with blockchain and all the features this [login to view URL] has and be a payment gateway processor. We will add rfid payment process to buy tickets for events and create a POS system added to it, so that people can create events, use the POS and pass the rfid bracelet to buy food and drinks and at some points assist to the local stores inside of the event and buy with it. 
This in two ways: 1) online with immediate transaction type or 2) with prepaid credit on their wallet for offline transactions working along a cloud. *We require that the ideal candidate/business, posses proven work and expertise on this field, not only links of work, but actual letters or a way to contact other business to confirm their development. *Will require to write the project development first before starting the project. Please contact only if you meet the requirements. The defined work description is below on pdf. This is the initial step to do our project scope.