- Led the frontend team to migrate the company's proprietary Ad Platform from Vue to React, using Formily to refactor the form interactivity, improved real-time ad processing speed by 50%.- Designed a phased migration strategy to incrementally replace Vue components with React, maintaining continuous operation.- Architected and implemented a component library in React, TypeScript, and Ant-Design, reducing similar page's development time by 50%.

- Refactored the company's proprietary web analytics SDK to improve code readability, maintainability, and performance.- Modularized the codebase by breaking down monolithic code into smaller, reusable modules, facilitating easier updates and testing.- Provided training and documentation for team members on best practices for tracking and validating analytics data.- Developed scripts for the Analytics SDK to automate the npm package release workflow, including version bumping, changelog generation, and publishing to the npm registry and CDN, reducing the publish time to release new features by 50%.

+ Led the development and maintainence of a EBooking system for hotel merchant users, ensure high availability of Node.js web applications, achieving 99.99% uptime.+ Led the migration from *Node.js Server Side Rendering* archetecture to *Client Side Rendering*. Planned and executed canary releases for the SSR to CSR migration, gradually rolling CSR features to a small subset of users to ensure the smooth transition.+ Optimized web performance, reducing FMP time by 23%(from 2600ms to 2000ms) through chunk splitting and lazy loading.

Refactored the online course system for students using Vue.Built a CMS application for the operation team using Backbone.

Developed the mobile site for m.dangdang.com as frontend developer.

Designed and built a Hybrid Application using PhoneGap.Working with global teams to provide customer relationship management solutions.