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WebFull Stack Developer

Job in Singapore, Singapore
Listing for: Hyphen Connect
Full Time position
Listed on 2025-10-18
Job specializations:
  • IT/Tech
    Blockchain / Web3, Data Security, Cybersecurity, Data Mining
Salary/Wage Range or Industry Benchmark: 80000 - 100000 SGD Yearly SGD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Web3 Full Stack Developer

Web3 Full Stack Developer

We are hiring for one of our ecosystem projects in Web
3. 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, Node.js, or Rust, ensuring scalability and performance.
  • Frontend Development:
    Create responsive, user-friendly front-end interfaces for dApps using modern frameworks (e.g., React, Vue.js, Next.js) integrated with Web3 libraries (e.g., ethers.js, web
    3.js).
  • Blockchain Integration:
    Integrate dApps with blockchain networks, wallets (e.g., Meta Mask, Wallet Connect), 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, Node.js, 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, Vue.js, Type Script, Next.js) and Web3 libraries (e.g., ethers.js, web
      3.js).
    • 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, Graph

      QL, 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 tools.
  • Bonus Skills:
    • Experience with layer-2 solutions (e.g., Arbitrum, Optimism) or cross-chain bridges.
    • Familiarity with Dev Ops 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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