Dongmin Wang

Built an AI-assisted daily development workflow with ChatGPT, Claude Code, and Codex, improving iteration speed and output quality. Refactored core modules, removing ~20,000 lines of redundant code and optimized 20+ endpoints achieving 50%+ response-time reduction.

Delivered backend service iterations and resolved production issues. Collaborated with product and client teams on version releases.

Optimized numerous slow SQL queries, cutting response times from seconds to milliseconds and improving cache hit rate by 30%+. Built enterprise WeChat robot capabilities, achieving ~30% uplift in DAU/retention, 30% higher conversion, and 50% lower cost.

Built an office management system, accounting system, and WeChat Mini Program from scratch, establishing a paperless, mobile-first office environment. Solely responsible for and completed all work independently.

Led data crawling, cleansing, tagging, indexing, and read-write splitting to provide search APIs for a Credit Card Deals app. Integrated Aurora push notifications and event tracking, and maintained the CMS for product and operations teams.

Developed a corporate travel booking system including flight search, travel policy matching, approval workflows, and frequent-flyer management. Used multi-threading to optimize query performance and improved table structures to enhance throughput.

Bachelor of Engineering in Computer Science and Technology from Beijing University of Technology, completed in 2011.