Senior Full-Stack Developer — E-commerce + Crypto WalletUrgent
We’re looking for a senior full-stack developer to improve an existing e-commerce application and add crypto wallet and payment functionality. The application is already functional, so we need someone who can understand the current codebase, modernize it without unnecessary rewrites, and improve the architecture, APIs, validation, performance, error handling, and payment flow.
You should have strong React, TypeScript, Node.js, Express, SQLite, and REST API experience, along with practical Web3 experience. The work includes integrating browser wallets such as MetaMask and Rabby, adding EVM testnet payments, verifying blockchain transactions on the backend, linking payments to orders, and handling all transaction states. Experience with ethers.js, viem, wagmi, e-commerce payments, and transaction security is important. Initial development will use testnet only, with delivery needed in around one month.
Budget range:
$750 – $1,500
- Hiring as
- Individual
- Hiring stage
- I will possibly make a paid hire
- Work type
- Full-time position (Contract)
- Experience level
- Junior, mid-level, senior
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