Android Stuido recompile app

I am looking for an experienced Android developer to recompile an existing app of mine. The reason for the recompile is to be able to add new features to the existing app. The source code for the app is available as I have already developed it. The new features I would like to add are additional functionalities for the app. As such, I need someone who has the skills and knowledge of programming a mobile application to help with recompiling the application. The project requires attention to detail and quality of the finished product, so please indicate in your proposal that you have the necessary experience. Thank you!