shanshan

Spearhead the architecture, design, and development of an innovative NFT marketplace focused on scalability, security, and user experience. Lead smart contract development using Solidity, ensuring robust minting, transfer, auction, and royalty functionalities aligned with ERC-721 and ERC-1155 standards. Build front-end interfaces with React, integrating real-time blockchain data and responsive design principles to support diverse user interactions. Develop scalable backend APIs and services in Node.js and Python to handle metadata storage, user authentication, transaction processing, and off-chain computations. Collaborate with product, design, and security teams to ensure compliance with best practices in DeFi and NFT ecosystems. Implement gas optimization strategies and upgradeable contract patterns to reduce user costs and facilitate future enhancements.

Developed and maintained critical components of Chainlink’s decentralized oracle infrastructure, including Chainlink Staking v0.2, contributing to network security by incentivizing honest participation. Engineered smart contracts for Chainlink Data Streams, enabling real-time, reliable off-chain data aggregation and delivery to decentralized applications. Built and enhanced Chainlink VRF (Verifiable Random Function) contracts, providing secure and provably fair randomness to blockchain applications like gaming and NFTs. Contributed to the design and prototyping of the Cross-Chain Interoperability Protocol (CCIP), facilitating secure messaging and token transfers across heterogeneous blockchain networks. Worked extensively with Solidity, Hardhat, and Foundry for development, testing, and deployment of high-stakes smart contracts. Actively participated in the Chainlink developer community to provide technical guidance and support.

Developed Uniswap V2 DEX and governance protocols. Built and optimized smart contracts and integrated front-end systems. Ensured seamless interaction between smart contracts and web interfaces.