Di Zhang

Developed backend interfaces of an online ticketing system for intercity buses serving millions of users and generating significant annual revenue. Built web-based settlement system processing hundreds of thousands of transactions daily, integrating with bus companies, third-party platforms, banks, and payment systems. Maintained system operation through updates, bug fixes, and database management. Developed backend and management system for a covid-19 epidemic monitoring platform to analyze travel records and prevent epidemic spread, covering millions of people. Awarded Outstanding Employee recognition multiple times along with team awards.

Developed backend interfaces for an online ticketing system for intercity buses using Java SE, Java EE, and Oracle. The system served millions across two provinces and generated over ¥100 million RMB annually. Developed the web-based settlement system that processed hundreds of thousands of transactions daily and integrated with bus companies, third-party platforms, banking systems, and payment platforms. Maintained system operation by releasing new versions, fixing bugs, and managing database abnormalities. Developed backend and management systems for a Covid-19 epidemic monitoring system covering millions of people. Recognized multiple times as Outstanding Employee and part of Outstanding Team awards.

Developed and maintained a road construction supervision system and an internal employee management system using Java and various frameworks. Was responsible for daily data maintenance and bug fixes ensuring system reliability and functionality within the company.