I would like to hire an Android Developer

Hi, I am looking for a customised solution for my upcoming start-up. I would be an aggregator for all the restaurants and bakeries in my locality There would be three sections initially on the app- Bakery, Restaurants and Grocery Store. Will need OTP, payment gateway, location selection(on map or by typing location) features in the app. IOS and Android both. User flow: 1) Opens app. Select location on map or auto fill by searching. 2) The main page should run a slider and three section tabs below – Bakeries, Restaurants, Grocery Store. There should be a provision to add more in future. 3) On selecting bakery or restaurants, the list of restaurants/bakery in drop down fashion will appear. 4) On selecting any restaurant/bakery the specific list of items appear in tile format. User adds items to cart. 5) Selects cart. Promo code feature should be available. Payment through eWallets, Cards and Pay on delivery. Grocery delivery won’t be real time, it will be delivered on specific dates in a week (say Sundays and Wednesdays). Provision should be made accordingly. The location of all the restaurants should be defined. The system should calculate the distance from the restaurant/bakery selected to the location of the customer. And delivery charge according to it should be calculated. Kindly quote a price for the above requirement. Also mention the time to be taken. Thanks.