A system for processing and verifying real-time calculations in a cloud computing environment is disclosed. In embodiments, the system performs implements methods to receive, at a first data center, a request from a point of sale (POS) system to perform a real-time calculation, where the real-time calculation is used to make automated decisions about a transaction. The system can transmit the request to a decision handler. The decision handler can determine which of a plurality of decision engine queues to further transmit the request to. The decision handler can transmit the request to a decision engine queue from the plurality of decision engine queues. The decision engine queue can scatter the request to at least two decision engines. The decision engine queue can receive a result of the real-time calculation and transmit the results through other components to the POS system.