Abstract: Various examples are directed to systems and methods for executing transactions in a hybrid computing environment. A volume transaction engine may receive first transaction request data from a first transaction platform application and select transaction description data describing a plurality of process operations for executing the first transaction. The volume transaction engine may execute the first process operation at least in part by accessing a first backend system executing at the cloud platform deployment and execute a second process operation at least in part by accessing a second backend system executed by an on-premise computing system.