👋 Available starting January 2026

Hi, I'm Y Yuan

I'm a Full-stack & Agent Developer

Master's student at Northeastern University specializing in web app development. Passionate about building scalable distributed services integrated fine-tuned models to promote user experience.

4.0
GPA at Northeastern
50+
Communities Served
6-month
Industrial/Research Internships
25+
Projects Delivered

Technical Skills

💻 Programming

Python Java JavaScript TypeScript SQL Go C/C++ C# Rust Swift

🗄️ Framework

React Vue Next.js FastAPI Flask Django Express Node.js Maven/Gradle Spring Boot Tailwind Flutter REST APIs

☁️ Cloud & DevOps

AWS Azure GCP Git Docker Kubernetes Colab Git GitHub Actions

🗄️ Databases & Infrastructure

MySQL Redis PostgreSQL MongoDB Firebase Bedrock Milvus Kafka Elasticsearch

🤖 Machine Learning

Cursor PyTorch TensorFlow LLMs LangChain RAG Transformers Fine-Tuning Prompt Engineering

Featured Projects

AI/Agent

AI-Powered Translation System

Real-time multilingual translation system with microservice architecture, achieving 60% faster response times through intelligent caching and 99.9% message reliability.

AWS SageMaker Redis RabbitMQ Socket.IO
AI/Agent

RAG-Based Knowledge Assistant

Built an intelligent document Q&A system using LangChain and vector databases, processing 10,000+ documents with 95% accuracy in information retrieval.

LangChain Milvus FastAPI OpenAI
Full-Stack

E-Commerce Platform

Complete MERN stack e-commerce solution with real-time inventory management, payment integration, and admin dashboard. Handles 1000+ concurrent users.

React Node.js MongoDB Stripe API
Full-Stack

Billing Management System

Enterprise billing solution with Vue.js and TypeScript, supporting 25% increase in daily transactions with optimized SQL queries reducing response time by 40%.

Vue.js TypeScript PostgreSQL Docker
Backend

COVID-19 Vaccine Tracker

Automated tracking system using CoWIN APIs that helped 500+ families secure vaccination appointments with intelligent notification system.

Python FastAPI Telegram Bot Redis
Backend

Data Pipeline Orchestrator

Built scalable ETL pipelines processing 1M+ records daily with Apache Airflow, reducing data processing time by 65% through parallelization.

Python Airflow Kafka AWS
Backend

Microservices Banking API

Spring Boot microservices architecture handling financial transactions with 99.99% uptime, implementing SAGA pattern for distributed transactions.

Spring Boot Java RabbitMQ MySQL
Mobile

Edenic - Stock Market Game

Production Android app with real-time stock trading simulation and social features. Optimized performance with 40% faster load times.

Kotlin Android SDK Firebase Yahoo Finance
Mobile

Connect - Secure Chat

Cross-platform messaging app with end-to-end encryption, real-time sync, and push notifications. 50K+ downloads on Play Store.

Flutter Dart Firebase WebRTC
Mobile

Fitness Tracker iOS

Native iOS app with HealthKit integration, workout planning, and progress tracking. Featured in App Store fitness category.

Swift SwiftUI HealthKit Core Data
Showing 10 of 10 projects

Work Experience

July 2025 - Present

AI Research & Developer Intern

Northeastern University, Portland, ME

• Developed a real-time multilingual translation app for cPort Credit Union using microservice architecture with React/Next.js frontend, and Express/Node.js backend, serving 50+ immigrant communities in Maine
• Collaborated with UI/UX teams to implement responsive interfaces, ensuring consistent functionality across desktop and IOS devices, boosting mobile user engagement by 15%
• Implemented event-driven microservices using RabbitMQ for asynchronous translation request processing and Socket.IO for real-time bidirectional communication, enabling instant translation delivery while maintaining 99.9% message reliability across distributed services
• Optimized translation performance by implementing Redis caching layer for frequent translations and designing intelligent cache invalidation strategies, reducing API costs by 45% and improving response times by 60% for common banking queries
• Built secure, production-grade infrastructure on AWS SageMaker for multilingual translation models

July 2024 - Dec 2024

Software Developer Intern

Clynk, Portland, ME

• Architected and implemented a scalable full-stack billing management app using Vue, TypeScript and Electron, collaborating with cross-disciplinary teams, which supported a 25% increase in daily transaction volume
• Revamped invoice dashboards using Vue.js, achieving a 20% reduction in page load time by optimizing component rendering and state management, which enhanced user engagement by 15%
• Developed and maintained RESTful APIs, optimizing data exchange between financial services, resulting in a 25% reduction in transaction processing time and improving data consistency by 30%
• Optimized SQL queries and restructured the database schema for the invoice management system, reducing data redundancy by 35%, cutting query response time by 40% and boosting invoice retrieval efficiency across 50,000+ products
• Engineered CI/CD pipelines using Docker and Jest, slashing deployment time by 50%

Jan 2023 - May 2024

Teaching Assistant

Northeastern University, Portland, ME

• Discrete and Data Structures (Topic: Algorithm)
• Web Development (Topic: JavaScript / React / Node.js / MySQL / MongoDB)
• Information Visualization: Theory and Applications (Topic: Python / Flask / Observable)

Get In Touch

I'm currently seeking software-related opportunities starting from January 2026. Let's build something amazing together!

Email Me →