Etienne Lee

National Tennis player turned software developer

Work Experience

00IceKredit2026

Data Science Intern · Summer 2026

Led a cross-domain, cross-lingual Alzheimer's detection project using HuBERT and RoBERTa, reaching 0.70 balanced accuracy on a sparse, code-mixed target dataset mainly through domain adaptation and data augmentation.

01Conversion Capital2025

Data Science Intern · Summer 2025

Built pipelines to track investment signals across 3,000+ companies and automated data syncing between platforms using Python.

02Neopets2024

Software Engineering Intern · Summer 2024

Built a browser extension and multiplayer game demo for the Neopets platform using React, TypeScript, and Node.js.

03UPenn TA2025 – Now

Teaching Assistant, CIS 5500: Databases · Aug 2025 – Present

TA for a graduate databases course with 200+ students. Hold office hours, mentor project groups, and write homework and exam questions.

Projects

00New Tab Photo Extension2025

TypeScript · React

A Chrome extension that displays a random photo from a personal collection as your new tab background, built originally for friends and family. Published on the Chrome Web Store.

01Ocean Biodiversity Explorer2025

React · Node.js · PostgreSQL · AWS

Interactive full-stack website for exploring marine species and ocean conditions over time, built on real oceanographic data. Designed the database for 136M rows of raw data and sped up key queries up to 4x.

02PennOS2025

C · Bash

Co-built a UNIX-like OS from scratch in C, featuring a priority scheduler, FAT filesystem, and interactive shell supporting standard UNIX commands.

03News Source Classification2026

Python · PyTorch · HuggingFace

Predicts whether a headline came from Fox News or NBC News. Scraped and expanded the dataset to 17.9K headlines, then fine-tuned RoBERTa and DeBERTa to reach 91.75% accuracy.