Blockchain Developer

Job Title: Web3 / Blockchain UI & Wallet-Integration Developer

Experience

Role Overview:

We are seeking a talented Web3 UI Developer with strong wallet-integration and blockchain experience to build wallet-enabled dApps / front-ends / SDKs. You will integrate multiple wallet providers, support multi-chain networks, implement signing flows, manage blockchain interactions (transactions, balance, token/NFT indexing), and build secure, user-friendly wallet UI and wallet SDKs for our platform / partners / users.

Key Responsibilities:

- Build responsive, high-performance frontend UI using React + TypeScript

- Integrate wallet providers (MetaMask, WalletConnect v2, Coinbase Wallet, Trust Wallet, OKX Wallet, hardware wallets, other popular wallets/SDKs) and manage wallet connection, accounts, chain/network switching, wallet events

- Use Web3 libraries (ethers.js, Web3.js or similar) to interact with smart contracts, fetch on-chain data, manage transaction flow, signing, confirmations & error handling

- Support multi-chain / custom-RPC networks, custom chain configuration (icons/explorers), multi-asset (tokens/NFTs), indexing balances & transaction history

- Build or integrate wallet SDK / provider API for dApp integration (eth_requestAccounts, sendTransaction, signTypedData, event handling, etc.)

- Collaborate with backend, smart-contract and product teams to ensure seamless integration of on-chain/off-chain logic & good UX

- Write clean, modular, well-tested code; follow version control, code reviews, maintain UI quality & responsiveness

Requirements:

- 2+ years of frontend development (JS/TS, React)

- Hands-on experience with Web3 libraries (ethers.js / Web3.js) and wallet integrations

- Solid understanding of blockchain, EVM-chains, smart-contracts, transactions, gas/nonce, network/chain handling

- Comfortable translating UI/UX designs into production-ready, responsive frontend

- Experience with state-management, component-based UI, clean & maintainable code, version control & collaboration

Preferred / Nice-to-Have:

- Familiarity with smart-contract logic (Solidity) or close coordination with smart-contract developers

- Multi-chain, custom-RPC, hardware-wallet integration experience

- Experience building wallet SDKs / provider APIs for dApp integration

- Knowledge of token/NFT standards, indexing, asset management in UI

- Understanding of Web3 / wallet security best practices, event handling, error/edge-case flows