Hi Sir,
I completely understand your requirement,
I have 8 year exp with Asp.net,C#,React, react native, redux, reducer,bootstrap, c# APIs, node js, html, css, Angular js and android and ios development.
I have knowledge good knowledge about integrated 3rd party apis and scrapping/crawling/data collect.
right now i am working Collect data for linkedin from google results.
contact info and compant info with contact number and email ids.
Db- Microsoft sqlserver, mongodb, Mysql.
Os - Window/linux and creates mobile applications.
Payment gateway integration also i did.
if you want to show demo i can show you once i will connect.
I have developed many project web or mobile application with react native those all on play store and Apple store or live.
I will be happy if you will give me a chance.
ping me i will. help right now.