1. A system for providing a job manager for use with a cloud computing environment, comprising: a computer, including one or more processors and memory, and a cloud environment executing thereon that supports provisioning of enterprise applications, including providing, for each service type of a plurality of service types, a service definition package that includes information that enables the cloud environment to provide the service type, providing, for each service type of the plurality of service types, a service management engine associated with the service type that enables provisioning of a service instance of the service type; a job manager that manages the execution of jobs within the cloud environment including their job states; a job manager service that provides an application program interface which receives administrative commands to be processed within the cloud environment, to perform operations including provisioning of the service instance, wherein the administrative commands are processed as jobs; a job registry that stores information associated with the jobs; and wherein the job manager updates the job registry, including registering instances of the administrative commands together with unique job identifiers, and returning the job identifiers so that a unique job identifier associated with a job is used to retrieve an administrative command process status associated with the service instance, and the result of the job being processed is stored in the job registry.