1. Participated in the development and maintenance of internal system administrator tools, aiding in enhancing operational efficiency for the business team, including event configuration, product promotion, message broadcasting, and more. 2. Led the design and implementation of several new backend services for Pinkoi's innovative business strategies, enabling functionalities such as theme subscriptions and event registrations. 3. Refactored legacy code and wrote tests to effectively reduce system overhead, minimize errors, and enhance code maintainability. 4. Successfully leveraged AI tools to optimize website SEO, thereby increasing the visibility and search engine ranking of Pinkoi's internal product listings.

1. Participated in the backend development of an e-commerce automated shop system with multi-tenant architecture, primarily responsible for identity verification mechanisms and request rate limit, ensuring system security and performance. 2. Led the proof of concept for the backend management system of social shopping, successfully integrated the Facebook API, offering a series of functions such as comment management, message center, and post lottery. This improved the social media management experience for our customers.