I've only seen this as an internal move, which is how I did it. Ask to take ownership of a project, even a small one. Do it successfully for at least one delivery. Learn the technical ins and outs and the political relationships within the organization. Become known as the $PROJECT person. Every organization handles projects differently so learn and use the specific lingo and process in yours.
Once you do that, you can formally ask for the role.
Once you do that, you can formally ask for the role.