# Wendy Y. > 10+ Years Experience | Fullstack/Frontend Engineer | Expert in JavaScript, TypeScript, Java, React, Node.js | Specialized in Scalable Web Applications | wendyyun.com Location: Seattle, Washington, United States Profile: https://flows.cv/wendyy A highly motivated Software Engineer with 10+ years of experience in building complex web applications. Proficient in Java, JavaScript, Typescript, Node.js, C, Python, Golang, React, and React-Native. ## Work Experience ### Software Development Engineer @ Amazon Jan 2023 – Present | Seattle, Washington, United States Java, TypeScript, AWS CDK, React ### Software Engineer @ TikTok Jan 2023 – Jan 2023 | San Jose, California, United States Golang, JavaScript, Nodejs ### Senior Front End Engineer @ Meituan Jan 2016 – Jan 2021 | 中国 北京市 1. Developed 10+ mobile and web apps using MiniApp, React, Redux, React-Native, and Vue. Assisted in onboarding 1000+ hotel merchants and 300+ business partners to the Meituan platform and facilitated the ordering process for 10 million users. 2. Led a team of 8 engineers, and utilized agile development(Scrum) to optimize project management and reviews. Mentored and guided team members towards professional growth, resulting in multiple promotions. 3. Built a library of 5+ UI components and extracted shared business logic into 10+ npm-available SDKs(included securities, utilities, request lib etc.) to improve development efficiency by 30% while unifying user experience. 4. Optimized webpage performance, reduced First Contentful Paint time by 50% and enhanced user experience. 5 Reduced troubleshooting time by over 80% by effectively tracing user action and problem-solving skills. 6. Demonstrated proficiency in CI/CD. Using Nodejs, Java, Appium, RPC and Junit as infra and implemented hybrid UI automation testing, improved development and testing efficiency. 7. Designed and implemented an IoT platform for label printing, and showcased technical skills in Bluetooth and MiniApp. It improved successful printing rate by 20% through optimized data transfer and flow control. ### Front End Engineer @ JD.COM Jan 2014 – Jan 2016 | 中国 北京市 1. Front-end development expertise using jQuery/React-Native/Nodejs to build Jingdong Finance hybrid app. 2. Strong collaboration skills with product managers and cross-functional teams 3. Code refactoring and technology upgrade experience for improved maintainability and overall app stability 4. Developed a university live broadcast system and an online real-time interactive teaching MOOC system using Angular1.x, Bootstrap.js, and Less. 5. Developed responsive web pages across multiple devices, implementing a unified web design style. Skilled in resolving complex browser compatibility issues, ensuring compatibility for major browsers. ## Education ### Master's degree in Master of Computer Science Illinois Institute of Technology Jan 2021 – Jan 2023 ### Bachelor's degree in Psychology Peking University Jan 2015 – Jan 2017 ### None in Law Peking University Jan 2013 – Jan 2015 ## Contact & Social - LinkedIn: https://linkedin.com/in/yyunzi --- Source: https://flows.cv/wendyy JSON Resume: https://flows.cv/wendyy/resume.json Last updated: 2026-03-29