Web3 Developer

TechHavenLabs is seeking a Web3 Developer to help build blockchain-enabled systems for Unified Comms, an Electron-based platform evolving into a broader Web3 ecosystem. This role focuses on Web3 integration, crypto payment infrastructure, decentralized application workflows, and frontend/backend/blockchain coordination.

The ideal candidate is comfortable working in a startup environment with fast iteration cycles and practical implementation-focused engineering. You will collaborate directly with the project manager and development team on production-oriented Web3 features and infrastructure.

Duties/Responsibilities

1. Integrate Web3 wallet systems such as MetaMask, WalletConnect, and Coinbase Wallet
2. Build blockchain transaction workflows and crypto payment integrations
3. Connect frontend applications with blockchain and backend systems
4. Implement transaction monitoring and verification logic
5. Support Electron + Web3 integration architecture
6. Improve Web3 user experience and application usability
7. Collaborate with developers on scalable decentralized application workflows
8. Participate in technical discussions, code reviews, and feature planning

Required Skills

1. Strong JavaScript or TypeScript skills
2. Experience with React and Node.js
3. Experience with ethers.js or web3.js
4. Understanding of Ethereum ecosystem fundamentals
5. REST API integration experience
6. Smart contract interaction experience
7. Familiarity with blockchain transaction handling
8. Strong communication and collaboration ability
9. Ability to work independently in a remote startup environment

Education and Experience

1. Professional experience in Web3, blockchain, or frontend/backend development
2. Experience building or integrating decentralized applications
3. Experience with wallet integrations or blockchain-connected systems preferred
4. Portfolio, GitHub, or previous project examples preferred
5. Solidity or smart contract experience is a plus
6. Electron desktop application experience is a plus

Additional Requirements or Expectations Specific to the Position

1. Remote position
2. Full-time or contract-based collaboration
3. Preferred candidate regions:
4. United States
5. Canada
6. Europe
7. UAE
8. El Salvador
9. Async-friendly workflow with regular communication through Slack, Telegram, WhatsApp, and video meetings
10. Startup environment requiring adaptability, ownership mentality, and practical problem-solving
11. Candidates should submit:
12. resume or LinkedIn profile
13. GitHub profile
14. portfolio/projects
15. relevant Web3 or blockchain-related work examples