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Senior Web3 Developer — Wallet & Smart Contract Integration
Location: Remote (Europe)
Source: reddit-r-forhire
About the Role
You will be responsible for building the wallet architecture, transaction flows, and on-chain integration layer for a production Next.js platform. English fluency is required.
Requirements
- Experience: Minimum 5 years of professional experience.
- Proven Track Record: Must have shipped real projects involving wallet connection, contract reads/writes, transaction tracking, or token integration. You must demonstrate hands-on ownership, not just exposure.
- Web3 Stack:
- Proficiency with wagmi and viem in production.
- Experience with MetaMask/wallet integration, connection/disconnection, account and network switching, and chain-change handling.
- Deep knowledge of Ethereum-compatible networks, ERC-20 and token-sale contracts, EVM network configuration, RPC endpoints, contract addresses, and ABIs.
- Expertise in contract reads/writes, transaction receipts, event logs, gas estimation, and user-facing transaction status.
- Frontend Stack: Strong TypeScript, JavaScript, React, and Next.js skills.
- Engineering Standards: Ability to design reusable integration layers, understand wallet/transaction/contract integration risks, and write comprehensive unit and integration tests.
- Soft Skills: Ability to explain technical decisions clearly and work effectively in a distributed team.
- Location: Must be based in Europe.
Compensation
- Salary: €5,000–€7,500/month
- Contract Type: Long-term contract
How to Apply
Please DM with the following information:
- Resume
- LinkedIn profile
- Years of hands-on Web3 experience
- GitHub/Portfolio
- Timezone and availability
Note: You must have actually shipped projects in this domain to be considered.