Hi, I'm Yi 👋
Software engineer building AI‑powered web systems. Shipped features to 42M+ users at CarGurus and won multiple hackathons including Meta’s Llama and Harvard EasyA & Polkadot
YZ

About

Software engineer combining enterprise scale and startup velocity. Shipped features to 42M+ users at CarGurus and built award‑winning AI products, including Meta’s Llama hackathon and Harvard EasyA & Polkadot ($5K). MSCS from Northeastern and dual degrees in Economics and Business from Boston University; worked with teams across the US, Italy, and China.

Work Experience

S

SecondSense
Case Study

August 2025 - September 2025
Software Engineer (Contract)
  • Redesigned luxury product discovery flow from 20+ field form to 5-step wizard enabling 300+ users to complete wishes in 7 days through progressive disclosure and improved UX
  • Engineered Next.js/TypeScript wizard with AWS ECS job orchestration for automated product matching and personalized emails across 300+ subscriptions
C

CarGurus
Case Study

January 2024 - June 2024
Software Engineer Co-op
  • Collaborated in 10-person Agile team to develop vehicle detail and post-lead pages for multi-platform web application serving 21 million monthly vehicle page users (part of 42 million total monthly users)
  • Migrated 10 legacy UI components to custom Radix UI library in 150,000+ line codebase and implemented A/B testing frameworks
E

E.R.WEB

May 2023 - August 2023
Frontend Developer
  • Collaborated with engineers to develop mobile React Native and desktop React vaping IoT applications serving 50,000+ users
  • Implemented pixel-perfect UI components from Figma designs with Bluetooth connectivity and responsive layouts
B

Blue Reply

June 2021 - August 2022
Frontend Developer
  • Collaborated with product owners and analytics consultants to implement Google Analytics tracking across 5+ Whirlpool e-commerce sites serving 3M+ monthly users
  • Developed React components for Luxottica's B2B eyewear e-commerce platform with product displays and permission management portal
C

CoderBunker

August 2020 - January 2021
Frontend Developer (Contract)
  • Collaborated with tech lead and backend engineer to develop React-based retail music player for international sports retailer
  • Built responsive login interfaces, analytics dashboard, and announcement system to enhance in-store experience

Education

N

Northeastern University
Khoury Community Service Award 2025

2022 - 2025
Master of Science in Computer Science
B

Boston University

2013 - 2017
Bachelor of Science in Business Administration & Bachelor of Arts in Economics

Skills

JavaScript
TypeScript
Python
Java
React
Next.js
PyTorch
OpenAI
FastAPI
PostgreSQL
AWS
Node.js
My Projects

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

Project Interview Coach: AI Voice Interviewer with RAG

An AI-powered technical interviewer that conducts voice-based interviews about your project. Built with LiveKit for real-time voice communication and RAG (Retrieval Augmented Generation) for context-aware questioning.

React
Python
FastAPI
OpenAI
LiveKit
ChromaDB

AI Prompt System Monitor

Full-stack application for continuous evaluation and monitoring of AI prompt systems. Built to help application-layer AI teams monitor stability and test performance across models.

React
TypeScript
Python
FastAPI
PostgreSQL
Recharts
OpenAI API

Memory: Meta Glasses Memory Assistant

🏆 Winner - Meta Llama Hackathon WebAI Track

A multimodal AI assistant that helps Meta Glasses users recall networking conversations by intelligently processing video through frame extraction, transcription, and Llama 4-powered analysis.

Python
Llama 4
WebAI
OpenAI Whisper

Tippin' Dots: Cross-Platform Social Tipping System

🏆 First Prize Winner at Polkadot & EasyA Harvard Hackathon ($5,000)

Cross-platform social tipping product connecting decentralized identities with Polkadot blockchain wallets, enabling seamless tipping across Bluesky.

React
TypeScript
Node.js
Ethereum.js
Polkadot Asset Hub
@atproto/api
DIDs
Contact

Get in Touch

Open to new opportunities building AI-powered products. Let's connect via email or LinkedIn.