Looking for an well experienced developer to develop an cloud based POS with offline mod.

I need you to develop an cloud based restaurant software similar [login to view URL] were I will be able to sell to other restaurants. I would like this software to be developed. Please the features mentioned in sapaad site, need that all. Should work offline while internet is down. Should look user friendly, attractive and simple. I should be able to provide all the features to them like inventory management, staff management,. Looking for an expert in this, who can develop n teach me all the features