React, node, PHP expert/Full Stack developer

Small project, have bought a react native app. You need to build it, tweak the UI a bit and add few new features developing new APIs.
Would prefer someone who is familiar with CS-CART.

Work:
- Modifications in registration form.
- Animated flash screen
- Add payments page displaying data of payments made and payment pending.
- Implement quantity discount (Already implemented in back-end)
- Implement payment gateway (Already implemented in back-end)
- Display static OTP of order in app
- Tweak the existing UI and make it attractive

Will discuss more over chat.