i think ours is genral api backend side rails application. about 15 models same numbers of the controllers, 4-5workers, 1 C inline, 1 devise views in rails ( forntend is ios/android + angular webview app ) + one, hardware client.
we do some code genration + apiblueprint, swagger, rspecs works, rspecs works. to refine our work.
now the project is for first release, and we have tons of updates works. someone who can start qiuckly + continue.