Private JW Coin Exchange Build
Budget: ₹12,500 – ₹37,500 INR
I want to set up a small, invitation-only crypto ecosystem for my own use. The core idea is simple: mint a BEP-20 token called JW Coin (fixed supply 1 000, transfers restricted to the owner), sell it for INR on a private web interface, let myself swap it to USDT via PancakeSwap liquidity, and, when required, move the USDT back to INR through a P2P off-ramp.
Scope of work
• Solidity contract – BEP-20, 1 000 supply, owner-only transfer.
• React + Node.js web exchange with MetaMask connectivity.
• Admin dashboard where I can set the INR price for JW, pause or resume sales, and view full activity logs.
• Backend API that automatically pushes JW from the owner wallet to the buyer’s address once payment is confirmed. Manual UPI confirmation comes first; a Razorpay webhook will replace manual checks later, so build with that hand-off in mind.
• Security: enforce two-factor authentication for all logins and allow me to whitelist IP ranges.
• Email notifications for order and swap confirmations.
• Create the JW/USDT pair on PancakeSwap, add initial liquidity, and demonstrate a successful swap.
• Document and, if needed, script the steps for withdrawing USDT to INR via any standard P2P workflow.
• Deploy both frontend and backend to a live server of my choosing and hand over every line of code with setup instructions.
Acceptance criteria
1. Contract published on BNB Smart Chain mainnet, verified on BscScan, and reflecting the exact specs above.
2. Exchange UI loads, connects through MetaMask, and completes a buy cycle from INR → JW with the token arriving in the test wallet automatically.
3. Admin panel controls price and logs every transaction to a database.
4. Swap JW → USDT works through PancakeSwap and the liquidity position is visible.
5. Two-factor login and IP whitelist pass a penetration check; SSL is enforced.
6. Complete source code, env sample files, and a README that lets me redeploy in one go.
If you are comfortable spanning Solidity, Web3 integrations, React, Node.js, Razorpay APIs and basic DevOps, let’s talk timelines and milestones.
Scope of work
• Solidity contract – BEP-20, 1 000 supply, owner-only transfer.
• React + Node.js web exchange with MetaMask connectivity.
• Admin dashboard where I can set the INR price for JW, pause or resume sales, and view full activity logs.
• Backend API that automatically pushes JW from the owner wallet to the buyer’s address once payment is confirmed. Manual UPI confirmation comes first; a Razorpay webhook will replace manual checks later, so build with that hand-off in mind.
• Security: enforce two-factor authentication for all logins and allow me to whitelist IP ranges.
• Email notifications for order and swap confirmations.
• Create the JW/USDT pair on PancakeSwap, add initial liquidity, and demonstrate a successful swap.
• Document and, if needed, script the steps for withdrawing USDT to INR via any standard P2P workflow.
• Deploy both frontend and backend to a live server of my choosing and hand over every line of code with setup instructions.
Acceptance criteria
1. Contract published on BNB Smart Chain mainnet, verified on BscScan, and reflecting the exact specs above.
2. Exchange UI loads, connects through MetaMask, and completes a buy cycle from INR → JW with the token arriving in the test wallet automatically.
3. Admin panel controls price and logs every transaction to a database.
4. Swap JW → USDT works through PancakeSwap and the liquidity position is visible.
5. Two-factor login and IP whitelist pass a penetration check; SSL is enforced.
6. Complete source code, env sample files, and a README that lets me redeploy in one go.
If you are comfortable spanning Solidity, Web3 integrations, React, Node.js, Razorpay APIs and basic DevOps, let’s talk timelines and milestones.
Related categories:
JavaScript
Node.js
Express JS
React.js
DevOps
Solidity
Smart Contracts
API Development
Web3.js
Cryptocurrency