[MobileApp] Flutter + JS – QuickFix

I am developing a mobile application on the shoe/sneakers market.

Currently at 70% progress I am looking for an expert developer in Flutter, JS, API/JSON and MongoDB interactions. Knowledge of the DooFinder search/indexing engine would be highly appreciated. let’s cherish

So basically, I am looking for a business partner to collaborate over the long term.
Very promising application (if we success to publish it on the mobile app stores).