Senior Fullstack Blockchain Developer

PROFILE

I will be "Only One", not "No.*" and Keep our UNIST's motto - "First in Change"

Results-driven Full Stack Engineer with 8 years of experience in Web development and Blockchain Lifecycle EDUCATION

EXPERIENCE

PROGRAMMING LANGUAGE

LANGUAGES

SKILLS

CERTIFICATION

Korea Software Competency Assessment (KOSCA) 2017

Hong Kong Computer Society (HKCS) Certifications 2021 Ksan Kai

Senior Full-Stack and Blockchain Engineer

January 20, 1996 +1-985-***-**** **********@*****.*** Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea Bachelor in Computer Science

2013.04 - 2017.09

Plasbit.Co.Ltd, London, United Kingdom

Senior Full-stack Engineer

Engineered a secure cryptocurrency wallet application that supports over 60,000 users, achieving a 99.9% uptime and enhancing user trust through robust security measures. By using Wallet-adapter-wallets and Wagmi, integrated Solana and Ethereum wallet connections. Implemented smart contracts for DApps on Ethereum and Solana blockchains, facilitating functionalities such as tokenization, NFT creation, and decentralized DeFi protocols. To integrate multi-signature wallets and 2FA, reducing fraud incidents by 60% and enhancing overall platform security.

2022.11 - 2024.06

Juroku Bank, Ltd, Nagoya, Japan

Full-stack Engineer

Developed and optimized a secure chat widget for our banking platform, resulting in a 35% increase in customer satisfaction by ensuring communication for account inquiries and support. Designed and implemented a RESTful API for external integrations, which improved the platform's capabilities and increased developer engagement by 40%. 2019.07 - 2022.03

KASUGAI Co.Ltd. Nagoya, Japan

Full-stack Engineer

Created responsive front-end applications using React / Next.js, ensuring mobile compatibility and enhancing user experience, resulting in a 40% increase in mobile traffic. Collaborated with the sales team to implement a customer relationship management (CRM) system, leading to a 20% improvement in lead conversion rates through better follow-up processes. Managed database using MySQL, optimizing queries and improving retrieval times by 40% 2017.11 - 2019.05

Javascript / Typescript

Node.js / Express

React.js / Next.js

Solana / Ethereum

Web3.js

English

Chinese

Korean

Solidity, Python, Hardhat, Truffle, Wagmi, Anchor

MUI, TailwindCSS, AntDesign, Bootstrap,

Restful API, Redux, GraphQL, PostgreSQL, MongoDB, MySQL,

Docker, Kubernetes, Heroku, Vercel, AWS

Solana Web3.js, Ethers.js, OpenZeppelin

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