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Yingzhu
Sun

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Specialization
Full stack developer (focusing blockchain and backend)
Hourly rate
$35/hr
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About me
Full-stack developer focusing on blockchain technology and web3. In addition, very skillful in back-end development, remarkable experience within backend tech stacks.

Work experience

Bonfida
August 2023 – July 2024
Job title
Blockchain Developer
Work experience & achievements
• Deployed multiple smart contracts on Solana, enhancing transaction efyciency and reducing costs, leading to a 40% platform performance boost. • Developed non-custodial wallet, improving user security and autonomy, resulting in 30% growth in active users in six months. • Enhanced Serum DEX user base by optimizing features for trading efyciency, increasing daily volume by 50%. • Contributed to $5 million annual revenue increase at Bonyda through blockchain innovations. • Implemented logic for wallet providers to integrate .sol domain names and Twitter handles for fund transfers.
FJord Foundry
March 2022 – August 2023
Job title
Blockchain Developer
Work experience & achievements
• Managed DeFi development for CNV token, NFT, Vault and staking/bonding • Wrote Smart Contract Code for staking positions(NFT), NFT marketplace and deployed it on Ethereum network. • Designed Vault architecture and automated strategies to optimize the yield generated from users' assets. • Designed delta neutral machine to generate yield, but also automatically balance exposure to price volatility in an underlying asset, utilizing multiple positions to reduce directional risk related to price movements. • Collaborated with a team of developers, contributing to a 20% increase in team productivity.
Zilionixx
January 2021 – December 2021
Job title
Full Stack Developer
Work experience & achievements
• Designed new blockchain network by forking go-ethereum open source and customize for company's aim. • Worked on multiple projects including building Smart Contract per week, all of which were delivered on time. • Developed and deployed smart contracts on Zilionixx platform, optimizing gas usage by 30% through efycient code implementation. • Conducted security audits on smart contracts, identifying vulnerabilities and implementing robust solutions.
JuiceBox
February 2019 – January 2021
Job title
Blockchain Developer
Work experience & achievements
• Worked in front-end team for building web pages of JuiceBox.money and integrated Web3 into frontend for interacting with Smart Contract for the yrst 6 months. • Wrote Smart Contract for ERC20 tokens and implementing a part of DAO. • Worked in back-end team for building API endpoints and deploy it on AWS EC2.
DEF-TECH Audio & IT Solutions
February 2018 – January 2019
Job title
Web Developer
Work experience & achievements
• Developed and maintained code for 10 client websites primarily using HTML, CSS, JavaScript, and Python. • Collaborated with a team of 4 developers, gaining valuable teamwork experience. • Worked on API integration and developed functionality for systems using APIs.

Education

California State University, Long Beach
Graduation year: 2015
Level of study
Bachelor
Major / Field of study
Computer Science
California State University, Long Beach
Graduation year: 2017
Level of study
PGCE
Major / Field of study
Computer Science

CV