Facebook survey bot - frontend and backend

Look for developers with full stack development skills. Able to clone features of a website with frontend and backend. The website to clone is www [dot] survey bot [dot] io. The frontend will need to be able to customize a survey questions using 18 question types. The backend is SQL based storage as well as fully functional Facebook chat bot that will be able to ask questions based on a questions set. Please bid if you have sample of Facebook chat bot and frontend development experience and portfolio.