Build a Blockchain-Enabled E-commerce Platform with Crypto & Traditional Payments

Project Description:
We are looking for an experienced Full-Stack Developer (Blockchain + MERN) to build a secure and scalable e-commerce platform. The platform should support both cryptocurrency (ERC-20) and traditional payment methods, with a seamless checkout experience.

The solution must include:
Cryptocurrency payments (ETH and ERC-20 tokens) with MetaMask integration
Traditional payment gateway integration (e.g., Stripe/PayPal)
Cart management & JWT authentication
Real-time blockchain interactions with async verification
Atomic transactions to ensure secure payment processing
Responsive and modern UI for users
Dockerized deployment for scalability and easy maintenance

Key Deliverables:
Fully functional e-commerce platform
Secure payment processing with hybrid (crypto + fiat) system
Documentation and deployment guide
Clean, scalable, and well-tested code

Preferred Tech Stack (Open to suggestions):
Blockchain: Solidity, Web3.js/ethers.js, Truffle/Hardhat
Frontend: React, Material-UI (or similar modern UI library)
Backend: Node.js, Express.js
Database: MongoDB, Redis
Deployment: Docker

Additional Requirements:
Experience with blockchain payments and smart contracts is a must.
Prior work on e-commerce or payment systems will be a plus.