Build an Online grocery/supermarket Store

we are an established trading group operating from middle east. We have a supermarket chain (4 nos) and we would like to go online. We need a mobile friendly website with IOS and android mobile platform. We have a domain which is registered under go daddy To summarize the work flow- #.upload any item with our price and should have a calculation showing percentage of saving if he buys from our online store. # once order placed, we should receive an order confirmation (payment can be cash on delivery/pos credit/debit card sales) # once order despatched, customer should get a notification about approximate delivery time preferably a mob app notification or sms to the customer who used website for purchase. #customer profile is required and should have cash back offer for customer for next purchase and can use it against next purchase (a discount generated from current sales) #functions like ‘customer bought this, also purchased this’ # super sales page should be there- I mean any item which is more than 20% should be listed in that page # neat customization of product categories and sub product categories # search option with product type, product name etc. # admin can see each customer transactions including periodic filter # admin can upload a cash back amount to selected users. # group messaging sms/mobile app notifications # when joined, a welcome bonus plan should be added # a very well laid out and presented platform The whole concept can be discussed further after we've been connected in a chat. We welcome all experts to help us to bring our concept to limelight and of course we prefer an associate who can have a long term business relationship and excellent business brains.