I'd like to explain a little more about the release manager's role mentioned by Nilesh.
Release managers work to address the management and coordination of the product from development through production. Typically they work on more of the technical details and hurdles in which a traditional project manager would not be involved. Release managers oversee the coordination, integration, and flow of development, testing, and deployment to support continuous delivery. They're focused not just on creating, but also maintaining the end-to-end application delivery tool chain