Design backend on Amazon AWS for cryptocurrency basic exchange. Integrate INR market with 5 - 7 coins specifically of the exchange with their wallet deposit and withdrawal functions and rest integrate Binance BTC & USDT market. Wallets of such market will showcase in exchange with user balance if any but deposit/withdrawal are not required.
For exchange INR market order book is also required and maintenance of each user profile, history and more. Only bid if you have experience in this field and know how these things are built.
Backend person only required! Android/iOS/Website team will work separately on this project. Budget for this for backend person is between Rs.40,000 to Rs.50,000. Apply only if you can work long term with company.