I am a blockchain backend engineer with nearly 3 years of Web3 experience building DeFi lending protocols, NFT marketplaces, on-chain data synchronization systems, smart contract event monitoring, and backend microservices.
I have hands-on experience with Solidity, Go, Hardhat, Foundry, OpenZeppelin, and major DeFi protocols such as Aave, Uniswap, and Compound V2. I have worked across Ethereum, BSC, Polygon, and Solana ecosystems, delivering smart contracts and off-chain services end to end.
My recent work has focused on high-scale Web3 products, including multi-chain lending and NFT trading systems. I have contributed to performance optimization, data consistency, gas reduction, and production-grade monitoring and reliability.
Before moving into Web3, I spent more than 10 years in Java backend development and project management, working on payment systems, telecom platforms, enterprise integration, clearing and settlement, and system delivery. This background helps me design robust backend architectures and manage complex delivery processes.
I am comfortable working with microservice architectures, databases, caching, messaging systems, and observability tools. I also have experience mentoring junior engineers, writing technical documentation, and coordinating cross-functional delivery.
I am now targeting roles such as Web3 Backend Engineer, Blockchain Backend Engineer, Solidity / Smart Contract Engineer, and DeFi / NFT Platform Engineer, where I can combine backend engineering depth with blockchain product delivery.
Worked on a multi-chain DeFi lending protocol based on Compound V2 supporting Ethereum, BSC, and Polygon. Contributed to deposits, borrowing, liquidation, liquidity mining, tiered lending, and option-based lending features. Improved high-concurrency processing, optimized gas costs, designed event replay and data repair mechanisms, and mentored junior blockchain engineers.
Built features for a decentralized NFT marketplace including multi-chain NFT minting, trading, auctions, and cross-chain bridging. Implemented ERC721 and ERC1155 contract interfaces, backend microservices, batch minting, order matching, metadata handling, and anti-cheating mechanisms.
Led development and project management for payment systems, including WeChat Pay and Alipay QR-code integrations, merchant access, bank interfaces, clearing and settlement, accounting, reconciliation, planning, and delivery control.
Worked on telecom enterprise systems using MVC architecture, Struts, SpringMVC, Ajax, Oracle, SQL Server, and Web Service integration. Handled feature development, database maintenance, releases, requirements collection, and customer communication.
Developed Java applications for BPO/IPCC call-center systems onsite with Huawei. Worked with Dojo, jQuery, Struts2, Spring transaction control, and internal data-processing frameworks.
Bachelor's Degree, Computer Science and Technology
Bachelor's degree in Computer Science and Technology.
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