Projects I’ve Worked On
Selected · 06-
01 2023 – 2025
IXL Learning iOS App
Shipped core calculator and assessment features for IXL’s iOS app, used by 1 in 4 K–12 students in the United States, with a focus on reliability and performance.
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02 2024 – Present
CALICOJudge
Lead infrastructure for CALICO, UC Berkeley’s high school programming contest, running on Google Cloud Platform with auto-scaling support for 2,000+ concurrent contestants.
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03 2024
BayAreaCloudCity
Built a domain‑specific language for describing streaming data pipelines with GCP, making it easy for domain experts without infrastructure expertise to define, deploy, and evolve real-time jobs.
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04 2019 – Present
EMURoutingTracker
A real-time routing tracker for electric multiple unit trains, built in SwiftUI.
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05 2020 – 2023
Programming Assessments UCSD CSE
Created programming assessments for introductory UCSD CSE courses and maintained the automated grading infrastructure on Gradescope.
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06 2017 – 2019
Luogu
Contributed to the largest online programming learning platform in China.