Zichang Guo
Senior Software Engineer at instacart
Los Angeles, California, United States
Summary
🤩
Rockstar🎓
Top SchoolZichang Guo is a Senior Software Engineer in Los Angeles with 7 years of experience building backend systems and growth-driving features for consumer products. He currently leads backend development for Instacart+ membership, launching benefits and incentives to increase customer acquisition and GTV. His prior roles span Google (contributing to the Dart runtime and SDK), AWS (full-stack serverless applications with React, GraphQL/REST, Lambda and DynamoDB), and algorithmic work in computer vision and ML at ASML. An active open-source contributor, he has fixed bugs and improved core networking and async behavior in the widely used dart-lang/sdk, demonstrating attention to robust runtime behavior. He combines deep systems-level expertise with product-focused engineering and a strong academic foundation in electrical and computer engineering.
7 years of coding experience
4 years of employment as a software developer
Bachelor of Engineering (B.Eng.), Electronic and Information Engineering, 3.56, Bachelor of Engineering (B.Eng.), Electronic and Information Engineering, 3.56 at The Hong Kong Polytechnic UniversityThe University of Arizona
English, Chinese
Github Skills (12)
debug10
dart10
network-programming10
async9
unix-socket9
asynchronous9
socket9
http8
file-handling8
file-processing8
fileio8
file-access8
Programming languages (4)
Github contributions (5)
dart-lang/sdk
Dec 2018 - Sep 2020
The Dart SDK, including the VM, JS and Wasm compilers, analysis, core libraries, and more.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:169 commits, 267 comments, 134 issues in 1 year 9 months
Contributions summary:Zichang primarily contributed to the Dart SDK, focusing on bug fixes and improvements to the core libraries and VM. Their work involved addressing issues in the `async`, `io`, and `vm` packages, with notable changes to handling timeouts in streams, improving file system watcher tests and addressing the proper closing of sockets. They also addressed issues related to HTTP parsing and Unix domain sockets, demonstrating a focus on network communication.
dartsdkdart2jscore-librariesflutter
zichangg/flutter
May 2019 - Aug 2020
Flutter makes it easy and fast to build beautiful mobile apps.
Contributions:2 PRs, 17 pushes, 1 branch in 1 year 2 months
mobile-developmentdartandroidmobile-appsios
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