Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing an integrated cloud system that enables a user to integrate software tasks executing on different software platforms. A method includes maintaining, by an integrated cloud system, a first software platform and a different second software platform that are configured to communicate by a shared networking subsystem. The integrated cloud system receives a first request to deploy instance(s) of a first software task on the first software platform. The first platform deploys the instance(s) of the first software tasks. The integrated cloud system receives a request to deploy instance(s) of a second software task on the second software platform. The second platform deploys the instance(s) of the second software task. The integrated cloud system configures communications between the instance(s) of the first software task and the instance(s) of the second software task using the shared networking subsystem.