Systems and methods for executing electronic transactions with dynamically loadable transaction processing modules

Technologies for managing payment authorization request messaging for payment transactions include a transaction management controller. The transaction management controller receives a transaction amount for a payment transaction from a business management engine and a payment transaction type from a point of interaction device. The transaction management controller initializes a transaction processing module that corresponds to the received payment transaction type. The transaction processing module defines payment processing parameters for processing payment transactions of the payment transaction type. The transaction management controller receives payment card data for the payment transaction from the point of interaction device. The transaction management controller inserts the transaction amount and the payment card data into a payment authorization request message, which is transmitted to a payment network. A payment authorization response message is received from the payment network and transmitted by the transaction management controller to the business management engine. Other embodiments are described and claimed.