Building me cloud POS solution Buisness platform

Need to develop an Cloud POS solution platform similar to sapaad.com.

Looking for an well experienced Cloud based POS developer.

Have registered an domain under Google for this.

Hosting and data server or engine yet to be done. (Will discuss on which is best)

Our site should look very user friendly like site Sapaad.com

I should be able to create cloud POS for resturant kind Buisness easily.

Will share other details on discussion

All the server and configuration to be made under my account.

We should be able to provide Sales management, staff users, inventory, adding printers for counter, devices, kitchen, etc.., adding token display screen.., delivery mangement.
All like saapad has.

Should provide source and configuration details at final.
Should give training too for operating.