Systems and methods for real-time message processing and control loop feedback are described. A stream processing system includes (i) a publish/subscribe and message queueing subsystem and (ii) an execution subsystem. A real-time stream of transactions is received at the publish/subscribe and message queueing subsystem. A job is created to aggregate data from the real-time stream of transactions with data from one or more other streams received at the publish/subscribe and messaging queueing subsystem. The job is executed at the execution subsystem, and the aggregated data resulting from the execution of the job is received at the publish/subscribe and message queueing subsystem. At least a portion of the aggregated data is provided as input to a control loop feedback process, which is executed to generate a result.
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