Web 3.0 Developer

Responsibilities

• Design, develop, test, and deploy smart contracts (e.g., Solidity) and related on-chain components.
• Build Web3-enabled applications (dApps) and integrate wallets, signing, and on-chain reads/writes.
• Integrate with blockchain infrastructure: RPC providers, nodes, indexers, explorers, and analytics tools.
• Develop backend services for Web3 products (APIs, event listeners, job workers) and manage contract events.
• Implement security best practices, conduct code reviews, and support audits/bug bounties.
• Optimize gas usage and contract performance; manage upgradeability patterns where relevant.
• Write clean documentation, unit/integration tests, and participate in CI/CD and release processes.
• Collaborate with product to translate requirements into technical design and delivery plans.

Required Qualifications

• 2+ years of software engineering experience (Web2 and/or Web3).
• Hands-on experience with Solidity and EVM-based chains (Ethereum / Polygon / Arbitrum / BSC, etc.).
• Strong knowledge of smart contract development lifecycle: testing, deployment, verification, monitoring.
• Experience with Web3 libraries such as ethers.js or web3.js.
• Familiar with common standards: ERC-20, ERC-721, ERC-1155, and signature schemes (EIP-712).
• Proficient in at least one backend language (Node.js/TypeScript, Go, Python, or Java).
• Good understanding of cryptography basics: private keys, hashing, signatures, and wallet security.
• Comfortable working with Git, code reviews, and agile delivery.