Lydia Liu

In my free time, I enjoy writing fan novels and playing video games, and my favorite video game is Cyberpunk2077. I've hidden a secret “cheating” entry to my collection somewhere on this page. you'll know it when you find it!

Lydia (Ya Qi) Liu 柳雅淇

Undergraduate Researcher
Seeking PhD / Master's positions, Fall 2027

Hi, I'm Lydia! I'm a CS + Math student at UChicago who likes building reliable backend systems just as much as I like poking holes in them. Lately I've found my home in AI safety, doing research at the SAND Lab. Now I'm on the hunt for a PhD/Master's program starting Fall 2027. Feel free to reach me out at the contacts below!

Education

University of Chicago
Bachelor of Science, Computer Science, Mathematics, and Statistics Chicago, IL
  • T.D. Lee Scholarship Recipient
  • Dean's List 2025-2026

Research Experience

SAND Lab, University of Chicago
Undergraduate Researcher · advised by Ben Zhao & Heather Zheng Chicago, IL
  • Updating and extending Fawkes, an image-cloaking tool that protects individuals against unauthorized facial recognition
  • Updating and extending Glaze, a tool that protects artists' work from AI style mimicry
  • Conducting AI safety research on targeted facial transformation
  • Running Pangram red-team evaluations, probing the adversarial robustness of AI-text detection systems and analyzing model behavior under evasion strategies and distribution shift

Work Experience

Carelumi
Backend Software Engineer Intern Chicago, IL
  • Developed backend services using FastAPI to support secure ingestion and retrieval of structured healthcare data
  • Provisioned cloud infrastructure on AWS (EC2, RDS PostgreSQL, S3) to enable persistent storage and scalable service hosting
  • Implemented database access controls and query logic via PostgreSQL Row-Level Security to support multi-tenant data isolation requirements
  • Integrated an LLM API–based document processing workflow to automate validation of healthcare documents
  • Established containerized deployment and automated testing workflow using Docker and GitHub Actions CI/CD
Tiptop Technologies, Inc
Backend Developer Intern Remote
  • Stabilized backend infrastructure prior to product launch by diagnosing and resolving failures in FastAPI services
  • Designed and optimized API endpoints for asset management workflows, improving responsiveness of frontend data requests
  • Resolved concurrency issues in backend request handling by refining database access logic and constraint strategies

Projects

Satellite Constellation Planner
  • Built a scheduling engine coordinating observation tasks across satellite nodes
  • Applying stateful execution modeling and property-based testing to ensure correctness of distributed scheduling logic
ML-Driven Ad Generation Pipeline
  • Prototyped a FastAPI backend with the BLIP-3 vision-language model for an automated ad generation workflow
  • Designed a lightweight inference pipeline using FastAPI and AWS compute/storage services

Skills

Programming Languages

PythonSQLJavaScript

Backend & Web Frameworks

FastAPIFlaskNode.js

Databases & Storage

PostgreSQLMySQLDynamoDBAmazon S3

Cloud & DevOps

AWS (EC2, S3)DockerCI/CD (GitHub Actions)

Machine Learning

PyTorchHugging FaceLLM APIs

Tools

GitLinuxpytest

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