Yichuan Wang
Berkeley, California, United States
Summary
🤩
Rockstar🎓
Top SchoolYichuan Wang is a software engineer and EECS PhD student at UC Berkeley with five years of practical experience building backend systems and APIs for AI-driven applications. Based in Berkeley, he has focused on productionizing large language and vision model workflows, contributing notable OpenAI API integrations like parallel sampling, offline batch processing, and logprob support in the open-source SGLang serving framework. His work blends rigorous testing and bug fixes with feature-driven design, reflecting a pragmatic approach to robustness and developer ergonomics. An alumnus of SJTU’s competitive ACM program, he brings both academic depth and hands-on engineering to machine learning infrastructure. Colleagues appreciate that he often surfaces subtle edge cases in prompt handling and streaming behavior before they reach production.
5 years of coding experience
University of California, Berkeley
Github Skills (9)
openai-api10
api10
back-end-development10
python10
apidoc10
fastapi9
inference9
pydantic9
testing8
Programming languages (3)
Github contributions (5)
sgl-project/sglang
Jan 2024 - Feb 2025
SGLang is a fast serving framework for large language models and vision language models.
Role in this project:
Back-end & API Developer
Back-end & API DeveloperContributions:14 reviews, 15 PRs, 1 push in 1 year 1 month
Contributions summary:Yichuan primarily contributed to the OpenAI API integration within the SGLang framework. They added support for parallel sampling and offline batch processing through file uploads and processing. Their work also included implementing logprob functionality and enhancing the API with features such as stream options. Furthermore, the user fixed bugs related to prompt handling and provided more comprehensive testing of the OpenAI API features, showcasing their focus on API development and testing within the project.
cudadeepseekdeepseek-llmdeepseek-r1deepseek-r1-zero
yichuan520030910320/compiler_2021
Oct 2021 - Sep 2023
Contributions:161 pushes in 1 year 11 months
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