Web3 Developer
9.0/10
TechHavenLabs
$5,000 – $5,000 USD
Remote
mid
3 days ago
cryptodevweb3JavaScriptTypeScriptReactNode.jsethers.jsweb3.jsEthereumREST APISolidity
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Description
What you'll do
- •Integrate Web3 wallet systems such as MetaMask, WalletConnect, and Coinbase Wallet
- •Build blockchain transaction workflows and crypto payment integrations
- •Connect frontend applications with blockchain and backend systems
- •Implement transaction monitoring and verification logic
- •Support Electron + Web3 integration architecture
- •Improve Web3 user experience and application usability
- •Collaborate with developers on scalable decentralized application workflows
- •Participate in technical discussions, code reviews, and feature planning
Conditions
- •Remote position
- •Full-time or contract-based collaboration
- •Preferred candidate regions: United States, Canada, Europe, UAE, El Salvador
- •Async-friendly workflow with regular communication through Slack, Telegram, WhatsApp, and video meetings
- •Startup environment requiring adaptability, ownership mentality, and practical problem-solving
Requirements
- •Strong JavaScript or TypeScript skills
- •Experience with React and Node.js
- •Experience with ethers.js or web3.js
- •Understanding of Ethereum ecosystem fundamentals
- •REST API integration experience
- •Smart contract interaction experience
- •Familiarity with blockchain transaction handling
- •Strong communication and collaboration ability
- •Ability to work independently in a remote startup environment
- •Professional experience in Web3, blockchain, or frontend/backend development
- •Experience building or integrating decentralized applications
- •Experience with wallet integrations or blockchain-connected systems preferred
- •Portfolio, GitHub, or previous project examples preferred
- •Solidity or smart contract experience is a plus
- •Electron desktop application experience is a plus
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