Abstract: A mainframe deployment device for deploying code to a mainframe device in a stable, self-correcting manner is described. The mainframe deployment device is configured to receive a code section from the software management device, identify a set of valid sub-components from the code section using a dispatcher service associated with the dispatcher device, identify a set of elements in the code section identified for deployment, request the at least one testing service to perform at least one set of code diagnostics to determine whether the code section satisfies build requirements, attempt to create a deployment package from the code section, identify a production program running on the mainframe device, compare the production program to the deployment package to identify a set of synchronization errors, resolve the synchronization errors, and deploy the deployment package to the mainframe device upon resolving the set of synchronization errors.