Development POS "in the cloud"

I'm looking for a person who can develop a POS (cash) webapp working "in the cloud"
It should have a look and feel like this:



This will be eventually a very big project, because this POS module will be a part of a online invoicing webapp.

Good Day,

I have developed many pos applications and can develop a cloud version for you. Please email myself southerndales@gmail.com.