🏢 Department: Marketplace Engineering - 📦 Logistics WishpostI am a core maintainer and developer of the Warehouse Management System of Wish - WishWMS.🏆 Achievements:· Individually ported WishWMS web toolchain from Webpack 4 to Vite: 𝐁𝐈𝐆𝐆𝐄𝐒𝐓 Vue 2 + React hybrid project at Wish - 4 UI frameworks, 507 components, 227 pages and 8150 dependencies. The entire codebase was refactored, and many custom plugins are write from scratch for compatibility. ⚡️Preview delay: 144s ➡ under 1s⚡️ 🪽Cold boot: 231s ➡ 14s🪽 🪶Package size: -30%🪶· Modernised WishWMS foundation framework from Tornado to asyncio by myself: A 𝐅𝐔𝐋𝐋 refactoring of WishWMS's base web framework with a handmade asyncio event loop with gevent. 🎉 Python 3.7 ➡ 3.10 🎉 🔥 Tornado 4.5 ➡ 6.4 🔥 ⛳️ Tornado + Greenlet hybrid ➡ modern asyncio🏌️ 📈 Request performance +50% 📈 👾 146 dependencies upgraded 👾· I created a Translation Layer from MongoDB to PostgreSQL: An 💯 test coverage implementation to convert MongoDB queries to both PostgreSQL table columns and JSONB field queries. 🍻 0 refactoring needed: write MongoDB query, run SQL statement🍻 ⚡️ API response: Many Timeouts ➡ less than 0.6s ⚡️· Auto Fulfillment & Consignment project: I 𝒍𝒆𝒂𝒅 the development of several stages of these projects across many teams and departments. Merchant efforts were: fill in order + choose shipping + overseas clearance ⬇⬇⬇ Now: 🤖 𝐧𝐨𝐭𝐡𝐢𝐧𝐠 🤖· I created a modern Message Queue framework for auto-fulfilment pipeline A 𝒄𝒐𝒎𝒑𝒍𝒆𝒕𝒆 refactoring to move the old 16 cron jobs to event based structure built on top of my handwritten asyncio message queue framework. 🦾 Supports both Amazon SQS and Kafka 🦾 🔥 Throughput handling: about 6x increase 🔥· I invented DBNote, a reusable Jupyter Notebook DB query tool. 🪽Maintenance work: many one-offs ➡ reusable ad-hoc tools🪽 🎉Database inspect / export Jira one-off tickets: about 70% less🎉