Responsibilities: - Design and develop core smart contracts for Momentum Dex, including CLMM, ve3,3 model, liquidity incentives, and voting marketplace modules. - Develop DeFi protocols on the SUI chain using Move language, applying the SUI object model. - Design and implement veTokenomics mechanisms—lockup, vote weight calculation, reward distribution, and time decay. - Write comprehensive unit and integration tests with the Sui Test Framework to ensure contract security and correctness. - Conduct security audits and code reviews to identify and remediate vulnerabilities, following best practices. - Optimize contract performance to reduce gas consumption and improve transaction efficiency. - Collaborate with the front-end team to provide contract interface documentation, supporting Sui SDK integration and on-chain interactions. - Manage contract deployment, upgrades, and maintenance; handle production issues and provide technical support. Job Requirements: - 3+ years of smart contract development experience. - At least one end-to-end Web3 product launch from concept to production, with sole responsibility for contract code delivery. - Experience in DeFi protocol development; proficient in DEX, AMM/CLMM, liquidity mechanisms, and trade routing. - Familiarity with the ve3,3 model or vote-escrow token mechanisms; hands-on implementation experience preferred. - Proficiency in Solidity or Ethereum DeFi development; solid understanding of DeFi patterns and best practices. - Strong security awareness; knowledgeable about common smart contract vulnerabilities (reentrancy, integer overflow, access control) and able to write secure code. - Skilled in writing comprehensive tests; familiar with unit testing, integration testing, and mocking. - Proficient in Git version control and code review processes; adheres to clean code standards and documentation practices. - Excellent debugging and troubleshooting skills for rapid issue resolution. - Experience with the Sui SDK (TypeScript) or front-end integration; able to collaborate effectively with front-end teams. Additional Qualifications: - Degree from a Project 211 or 985 university preferred. - Experience with Move language projects is a plus. - Deep understanding of the SUI ecosystem, including the object model, SDK, toolchain, and testing framework. - Full implementation experience with the ve3,3 model or vote-escrow tokens. - Participation in smart contract security audits or vulnerability remediation. - Familiarity with Move Prover for formal verification. - Experience with Aptos Move or other blockchain platforms (Ethereum, Solana). - Knowledge of financial mathematics, algorithm optimization, or cryptography. - Contributions to open-source projects or technical blogging/presentations. - Familiarity with other protocols and tools in the SUI ecosystem. - High TOEFL or IELTS scores and strong English communication skills. Benefits: - Competitive compensation and benefits. - Flexible working hours and remote work options. - Opportunities for learning and growth, with support for exploring cutting-edge technologies. - Inclusive, open team culture with flat management and a focus on individual development.