qinghuaxiang

Deep Blockchain R&D Expertise: Possesses comprehensive blockchain system R&D experience, with practical implementation across public chain foundations, smart contracts, and DApp products.

• Smart Contract Mastery: Proficient in Solidity, understanding EVM execution principles, Storage Layout, Gas optimization, and contract security design.

• Security & Defense: Extensive smart contract development experience, familiar with common attack vectors (Reentrancy, Overflow, Flash Loans, etc.) and corresponding defense strategies.

• Multi-Chain & Web3: Experienced in development and deployment on Ethereum, BSC, Polygon, and other multi-chain ecosystems. Mastered cross-chain bridge design and multi-signature security solutions (Gnosis Safe).

• Advanced Web3 Concepts: Proficient with Hardhat, OpenZeppelin, Uniswap V2/V3, ERC20/721/1155, etc. Familiar with Layer2 solutions (Optimism, zkSync, Starknet) and specialized in Account Abstraction (ERC-4337) and Zero-Knowledge Proof (ZKP) research.

• Full Stack DApp Implementation: Mastered the complete Web3 Full Stack development process (Ethers.js/Web3.js + MetaMask/WalletConnect + Node.js backend), capable of independently building and launching full DApps.

• Off-Chain Infrastructure: Experienced in integrating and establishing event listening systems with infrastructure like The Graph and Chainlink.

• System Architecture & Distributed Design: Proven experience in high-concurrency and high-availability architecture design for both blockchain and Web2 systems. Expertise in microservices, message queues, and caching strategies to maintain stability in low-latency, high-throughput environments.

• Polyglot Full Stack Capability: Proficient in Golang, Node.js, and Java, enabling flexible system construction and stable solutions across different technology stacks.

• Performance Optimization Leader: Possesses systematic problem-solving and performance tuning skills, ensuring long-term maintainability and high-performance system operation.