Available for internships Summer 2026

Building intelligent systems that actually matter

Software Engineer & Data Scientist crafting full-stack applications and ML systems. Currently @ UC Santa Barbara studying Stats & Economics.

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76.59%
ML Model AUC
500K+
Features Processed
98%
Dimensionality Reduced
💻
Full-Stack Dev
🤖
Machine Learning
📊
Data Engineering
Toby Liu
SELECTED PROJECTS

Featured Work

🏆 Featured

Competitive Intelligence Platform

End-to-end data pipeline processing 4,662 comments with NLP clustering. Built with 13 Python modules, sentence-transformers, and HDBSCAN for automated competitive analysis.

Python HDBSCAN SQLite FastAPI NLP
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Full-Stack

Research Paper RAG Assistant

Full-stack QA system with React frontend and FastAPI backend. Hybrid search across 3,000 ArXiv papers using BM25 + embeddings.

React FastAPI PostgreSQL PyTorch
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ML Pipeline

Cancer Treatment Predictor

Ensemble ML framework with 5 algorithms achieving 76.59% AUC. Processed 500K+ features from 285 TCGA patients.

XGBoost PyTorch ETL Python
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Houston Methodist

Software Engineer Intern

May 2025 - Aug 2025
  • Built multimodal ML pipeline for bladder cancer prediction (76.59% AUC)
  • Reduced dimensionality by 98% processing 500K+ features
  • Ensemble framework with 5 algorithms & cross-validation

Boston Children's

Data Science Intern

Jun 2024 - Aug 2024
  • Processed ChIP-seq & ATAC-seq data for 5 rare disorders
  • Reduced plotting time from 2hrs to 20min per dataset
  • Generated 200+ visualizations for chromatin analysis
BACKGROUND

A bit about me

I'm a software engineer and data scientist who loves building things that make a real impact. Currently studying Statistics & Data Science + Economics at UC Santa Barbara, but I spend most of my time shipping code.

My experience ranges from building full-stack RAG systems with React and FastAPI to engineering ML pipelines that process genomic data. I'm equally comfortable debugging a TypeScript frontend as I am optimizing a PyTorch model.

When I'm not coding, you'll find me exploring new ML papers, contributing to open source, or working on side projects that scratch an itch.

Languages & Frameworks

Python
JavaScript/TypeScript
React
FastAPI
SQL
R

ML & Data

PyTorch
TensorFlow
Scikit-learn
XGBoost
LLMs
Pandas

Infrastructure

PostgreSQL
MongoDB
Docker
AWS
Redis
CI/CD

Let's build something together

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision. Whether you're looking for an intern or just want to chat about tech, feel free to reach out.

Email tobyliu2004@gmail.com
LinkedIn toby-liu-b45090257
GitHub tobyliu2004