Web3 Developer – Blockchain & Decentralized Applications (Remote)
Job Overview We are looking for a skilled Web3 Developer with expertise in blockchain development, decentralized applications (dApps), and smart contract engineering. You will be responsible for designing and implementing a hybrid Web3 architecture that integrates on-chain smart contracts with off-chain middleware for a decentralized logistics and marketplace system. This project leverages cutting-edge technologies such as Ethereum, Polygon, IPFS, Chainlink, and decentralized identity solutions, requiring experience in smart contract development, blockchain indexing, and Web3 integrations. Key Responsibilities • Develop smart contracts on Ethereum / Polygon / Optimism, ensuring security, efficiency, and scalability. • Implement decentralized identity (DID) and verifiable credentials using tools like Spruce ID or Ceramic. • Design and integrate oracles and cross-chain bridges for real-world data synchronization (Chainlink, The Graph). • Develop and maintain Web3 APIs (GraphQL, The Graph, REST) to enable seamless blockchain interaction. • Work with IPFS / Arweave for decentralized storage solutions. • Optimize gas fees and Layer2 rollup transactions for efficient blockchain interactions. • Collaborate with frontend developers to integrate Web3 functionalities into a React/Vue.js UI. • Implement decentralized governance mechanisms (Snapshot, Aragon) for community participation. • Ensure smart contract audits, formal verification, and security best practices. • Integrate WalletConnect, MetaMask, and other Web3 authentication tools for seamless user access. Skills & Qualifications Must-Have: • 3+ years experience in Web3, blockchain, and smart contract development. • Proficiency in Solidity, Hardhat, Foundry, and smart contract security. • Experience with Ethereum, Polygon, Optimism, or other EVM-compatible chains. • Familiarity with decentralized storage (IPFS, Arweave) and indexing ( The Graph). • Strong understanding of oracles (Chainlink), blockchain bridges, and interoperability. • Ability to optimize smart contracts for low gas fees and high performance. • Experience with GraphQL APIs, Node.js, and Web3.js / ethers.js. • Knowledge of decentralized identity (DID) and verifiable credentials. • Experience integrating decentralized governance (Snapshot, Aragon). • Security-first mindset with experience in smart contract audits. Nice-to-have: • Familiarity with Zero-Knowledge Proofs. • Experience in DAOs and community-driven governance models. • Previous work with Web2-to-Web3 integrations. Tools & Technologies • Smart Contracts • Blockchain Networks • Oracles & Indexing • Identity & Authentication • Governance & DAO Tools • APIs & Middleware • Frontend • Cloud Solutions Interested candidates should submit their resume and a cover letter detailing their relevant experience and why they are a good fit for this position to. • * Augusto Digital is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Join us at Augusto Digital and help us turn data into actionable insights that drive growth and innovation! Employment Type: CONTRACTOR Apply tot his job Apply tot his job