Dear sir,
I'm an experienced Android developer and I already developed several projects for E-Commerce, Restaurants, Grocery, and more. I also have good experience in Location-based applications. I can offer you an End-To-End solution consisting of Android application, Web Back-End to manage the overall system. So, some attractive options can be implemented like tracking delivery, customer locations, high-demand locations, discount coupons, AdMob ads, and more.
We can discuss these requirements together in details over chat.