add login and other features to existing restaurant demo app

I am looking for a talented programmer to help me add some new features to an existing demo restaurant app. The app is written in React Redux, so experience with the programming language would be an added bonus. I am looking for a talented coder who will be able to add a few features such as a login feature, checkout feature, and some inventory management tools. I would also like the programmer to support the web platform of the app. If you have experience with this type of project and can meet my needs, I'd love to hear from you.