Smart Contract Engineer

Join RWAHub as a Smart Contract Engineer to design and build smart contract systems for diverse blockchain applications. Work remotely in a senior role with a focus on security and scalability. We are hiring a Senior Blockchain Developer to design and build smart contract systems across multiple client and internal projects. You will work on a variety of blockchain applications - from DeFi protocols to tokenized systems and Web3 platforms - ensuring high standards in security, scalability, and architecture.

• •Design, develop, and deploy smart contracts using Solidity
• •Implement token standards (ERC-20, ERC-721, ERC-1155) and custom logic
• •Build and maintain contract architectures across multiple projects
• •Ensure security, audit readiness, and upgradeability
• •Optimize gas usage and performance
• •Collaborate with backend and frontend teams for integrations
• •Participate in code reviews and technical decision-making
• •Contribute to documentation and internal best practices

• •Work across a diverse portfolio of blockchain projects
• •Exposure to both client work and internal ventures
• •Opportunity to influence architecture and technical direction
• •Collaborative, globally distributed team
• •Fast-paced environment with continuous learning

• •4+ years of experience in blockchain / smart contract development
• •Strong expertise in Solidity and EVM-based ecosystems
• •Experience with Ethereum and L2s (Polygon, Arbitrum, Optimism)
• •Solid understanding of smart contract security and vulnerabilities
• •Experience with Hardhat, Foundry, or similar frameworks
• •Strong software engineering fundamentals (testing, Git, CI/CD)
• •Ability to work across multiple projects and adapt quickly

• •Experience with DeFi protocols, staking, or token economies
• •Experience working with auditors or security reviews
• •Familiarity with upgradeable contracts (proxy patterns)
• •Backend experience (Node.js / TypeScript)
• •Experience in client-facing or consulting environments