Web3 Developer – Blockchain & Decentralized Applications (Remote)

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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.**


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