Senior Full-Stack DeveloperSearching
We need a senior full-stack developer to improve an existing e-commerce application and add cryptocurrency wallet and payment functionality. The application is already functional, so the work should focus on understanding and modernising the current codebase without unnecessary rewrites. You will improve the architecture, APIs, validation, performance, error handling, and existing payment flow.
You will integrate browser wallets such as MetaMask and Rabby, add EVM testnet payments, verify blockchain transactions on the backend, connect payments to orders, and handle pending, failed, cancelled, and successful transactions. The stack includes React, TypeScript, Node.js, Express, SQLite, REST APIs, and Ethereum tools such as ethers.js, viem, wagmi, and WalletConnect. Experience with e-commerce payments, Web3, TypeScript, and transaction security is required. Initial development will use testnet only.
Budget range:
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- Individual
- Experience level
- Mid-level, senior
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