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 How to Apply: 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 [insert application email or link]. • *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