Hi,
I have experience in React Native, mongodb and node.js. I can add features in your mobile app through building apis on Node.js.
In my past experience I have worked on uber like app clone. That app's backend was on Node.js and MondoDb. App itself was on react native.
May be I'm new to freelancer but I have 4 years of experience in development. I have worked on many projects.
So I can make your project successful.
Kindly send me a message so that we can discuss more about this project. Thanks