Open to opportunities

GuiYing Li

@kernanmk

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Blockchain full-stack developer specializing in smart contracts, web3, and scalable scraping systems.

China

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What I'm looking for

I seek roles building production-ready web3 and full-stack systems—smart contracts, scalable backends, responsive frontends, and secure data pipelines, with a collaborative team focused on quality and growth.

I am a blockchain full-stack developer with over seven years of experience building smart contracts, DApps, and robust scraping systems. I combine backend, frontend, and blockchain expertise to deliver end-to-end decentralized solutions and data pipelines.

I have hands-on experience creating multi-chain Solidity contracts, Merkle-tree whitelist presales, vesting schedules, staking and NFT marketplaces, and subgraph-based analytics. I implemented encrypted messaging, IPFS storage, and zero-gas lazy mint systems across multiple projects.

On the backend I design scalable services with Node.js/Express, Django, Laravel and data layers using MongoDB, PostgreSQL, and MySQL, and I deploy and maintain environments on AWS and Docker. I also build responsive frontends with React, Redux, Next.js, TailwindCSS and Material UI.

I enjoy solving anti-blocking and scraping challenges using Selenium, BeautifulSoup and custom crawlers, and I continuously contribute side projects while learning new tools. I communicate in English and Japanese and focus on secure, production-ready implementations.