Build Node.js Based Mobile recharge and Bill payment system - Fintech

We need a Mobile recharge and bill-payment system node js, react, based. If you already have a system of this kind, they are given special consideration. Bid if you can do this. Also, mention the lowest price you can offer.

Refferance System
https://play.google.com/store/apps/details?id=net.one97.paytm&hl=en_US