Integrate PostgreSQL’s pg_trgm extension to enable efficient trigram-based search functionality for 300,000 users with just 200 ms respond time Developed a distributed cron job scheduler to automate recurring tasks like daily report generation, supporting task triggered within 1 second intervals. Integrate with Slack Bot for notification Migrated 1 Million stock collection and 400,000 user data on production environment Implement alias command functionality for LineBot, empowering user to execute specific command using pre-defined text. Serving 600,000 message per day Implement and design notification, collaboration and stock collection market APIs Enhance GitLab CI pipeline by integrating ESLint, redocly and prettier for automated code quality check

Implement team wallet(integrate with Ethereum blockchain) Implement authorship token and enthuse token(integrate with Ethereum blockchain) Implement 1TM news feed feature Improve 1TM website permission system Improve 1TM website searching functionality Implement leaderboard of 1CU Reduce docker image size by 5176%

Implement organization and team page Improve theme system of website(add dynamic theming based on user preferences) Implement account center functionality(change name, change username, change password ... etc.) Implement segmentation for auto filter traffic Implement user avatar service with gRPC(upload, get, update avatar) Improve webhook trigger system

Construct car re-identification project We use Tensorflow and Faiss to construct a identification system based on car's appearance Testing with different loss function to see how it effects the result

Rewrite old .NET website to a new PHP website Implement web front-end and back-end, also include database migration Eventually me and my classmate fix about 1/3 bugs of current system