Yubin Xu

Built ETL pipelines using MySQL, DataX, Hive, and Presto, ensuring reliable integration of large-scale business data.

Designed and implemented data warehouse layers (DWS, ADS) to support sales and user behavior analytics.

Developed multi-granularity data tables (year, month, day, hour) for Power BI dashboards, enabling executives to track KPIs such as user retention, repeat purchase rates, and product performance.

engage the development of C-end products, including core feature design, user experience enhancement, and full-stack performance optimization to ensure efficiency and stability.

Implemented SSR-to-CSR migration using Nuxt.js and Nginx reverse proxy, improving first contentful paint by ~30%.

Built error fallback and rate limiting at the Nginx layer (static error pages, CSR fallback) to guarantee service resilience during peak traffic.