Yuchen Wei

Team Lead + Backend Developer

Skills: Java, J2EE, Node.js, REST API, Microservices, MongoDB, MySQL, DynamoDB, Angular, Next.js, Neo4j, R, Python (ML/DL), CNN, Bash, HTML/CSS

As the team lead, I coordinated development tasks and ensured project milestones were met. I focused on backend systems, including multi-database integration, API development, and multi-service deployment using Java and Node.js. I also implemented advanced features like media processing, visual learning systems, and machine learning models (e.g., 98% accurate traffic sign recognition). Additionally, I worked with Neo4j and R for data analysis and relationship graph visualization.

GitHub

Individual Projects

AI-Powered Traffic Sign Recognition

Designed and deployed a deep learning system using Convolutional Neural Networks (CNN) to classify traffic signs with 98% accuracy. Implemented the full pipeline from data preprocessing to model training and evaluation, demonstrating strong AI logic and programming architecture.

Fullstack App with Next.js & Java

Led a full-cycle backend solution using Java microservices and Next.js. Built complex REST APIs, integrated MongoDB, DynamoDB, and MySQL, and handled multi-service deployment. Oversaw every stage from system planning to frontend/backend logic implementation and production deployment.