About

I'm a PhD student at Columbia working with Prof. Eugene Wu and Prof. Kostis Kaffes.

My current research focuses on the intersection of LLM agents and database systems.

Previously, I spent 5 years at Google as a software engineer on the Spanner team, working on their new storage engine. Prior to that, I did my MS at UIUC with Prof. Tianyin Xu (thesis) and my undergrad at NYU Shanghai (inaugural class of 2017).

Recent Updates

2026-04 news I'm helping co-organize the SAO workshop at ACM CAIS. Join us!

Publications

Testing Configuration Changes in Context to Prevent Production Failures
Xudong Sun, Runxiang Cheng, Jianyan Chen, Elaine Ang, Owolabi Legunsen, Tianyin Xu
OSDI 2020
Automatically Correcting Networks with NEAt
Wenxuan Zhou, Jason Croft, Bingzhe Liu, Elaine Ang, Matthew Caesar
NSDI 2018

Teaching

CS 241 - System Programming
Teaching Assistant · (Teachers Ranked as Excellent)
Fall'17, Fall'18
University of Illinois at Urbana-Champaign
CS 436 - Computer Networking Laboratory
Teaching Assistant
Spring'18
University of Illinois at Urbana-Champaign

User Manual

Misc