Web3 Full Stack Developer

3 days ago

Singapore Hyphen Connect Limited Full time $80,000 - $150,000 per year

We are hiring for one of our ecosystem projects in Web3. As a Web3 Full Stack Developer, you will design, develop, and maintain decentralized applications (dApps) and blockchain-based systems. You will work across the full stack, from smart contract development to front-end interfaces, collaborating with cross-functional teams to deliver secure, scalable, and user-friendly Web3 solutions. Your expertise in Web3 protocols and modern tech stacks will be critical to building robust applications for the decentralized web.

Key Responsibilities

  • Smart Contract Development: Design, develop, test, and deploy secure smart contracts on various blockchain platforms (e.g., Ethereum, Solana, Polkadot, Cosmos).
  • Backend Development: Build and maintain backend infrastructure for dApps using languages like Golang, Java, , or Rust, ensuring scalability and performance.
  • Frontend Development: Create responsive, user-friendly front-end interfaces for dApps using modern frameworks (e.g., React, , ) integrated with Web3 libraries (e.g., , ).
  • Blockchain Integration: Integrate dApps with blockchain networks, wallets (e.g., MetaMask, WalletConnect), and decentralized protocols (e.g., IPFS, The Graph).
  • Protocol Development: Contribute to the design and implementation of Web3 protocols, including consensus mechanisms, cross-chain bridges, or DeFi primitives.
  • Security & Testing: Implement secure coding practices, conduct audits, and develop testing frameworks to ensure the reliability and security of smart contracts and dApps.
  • Optimization: Optimize performance of blockchain interactions, gas efficiency, and backend systems to enhance user experience and reduce costs.
  • Collaboration: Work with product managers, blockchain engineers, and designers to deliver end-to-end Web3 solutions aligned with project goals.
  • Research & Innovation: Stay updated on Web3 trends, emerging protocols, and new blockchain technologies to propose innovative solutions.

Qualifications

  • Education: Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field, or equivalent experience.
  • Experience:
    • 3+ years of full stack development experience, with at least 1+ years in Web3 or blockchain development.
    • Proven experience building dApps or working on Web3 protocols (e.g., DeFi, NFTs, DAOs, or layer-2 solutions).
  • Technical Skills:
    • Proficiency in Golang, Java, , or Rust for backend development.
    • Experience with smart contract languages like Solidity, Vyper, or Rust (for Solana/Polkadot).
    • Strong knowledge of front-end technologies (e.g., React, , TypeScript, ) and Web3 libraries (e.g., , ).
    • Familiarity with blockchain protocols (e.g., Ethereum, Solana, Cosmos, Polkadot) and tools (e.g., Truffle, Hardhat, Foundry).
    • Experience with decentralized storage (e.g., IPFS, Filecoin) and indexing solutions (e.g., The Graph).
    • Understanding of RESTful APIs, GraphQL, and microservices architecture.
  • Web3 Knowledge: Deep understanding of blockchain concepts (e.g., consensus mechanisms, gas fees, EVM, cross-chain interoperability) and Web3 ecosystems (e.g., DeFi, NFTs, DAOs).
  • Security Skills: Knowledge of smart contract security best practices, common vulnerabilities (e.g., reentrancy, front-running), and auditing tool

.Bonus Skills:

  • Experience with layer-2 solutions (e.g., Arbitrum, Optimism) or cross-chain bridges.
  • Familiarity with DevOps tools (e.g., Docker, Kubernetes) and cloud platforms (e.g., AWS, GCP).
  • Contributions to open-source Web3 projects or blockchain protocols.
  • Knowledge of cryptographic principles (e.g., zero-knowledge proofs, MPC).

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