Yilei Y
California, United States
Summary
🤩
Rockstar🎓
Top SchoolYilei Y is a seasoned software engineer and infrastructure specialist with 13 years of experience across major tech firms and startups, including Anthropic, Meta, and Google, and as founder/CEO of MangoUmbrella. He blends deep Python expertise, ML systems experience, and production infrastructure work—contributing to high-profile open-source projects like Pylint, Black, TensorFlow ecosystems, Bazel, and CPython. Regularly focused on modernization and reliability, his contributions skew toward large-scale codebase cleanup, Python 3 migrations, testing improvements, and build/tooling enhancements that keep complex projects maintainable. Based in California, he prefers direct outreach and values candidates who do their homework—reflected in his blunt LinkedIn stance toward generic recruiter messages. His background (Columbia Engineering MS, Tsinghua BE) pairs rigorous academic training with practical impact across ML research and production engineering.
13 years of coding experience
Master Computer Science, Master Computer Science at Columbia EngineeringBE Computer Science, BE Computer Science at Tsinghua University
Chinese
Stackoverflow
667reputation
11kreached
2answers
6questions
Github Skills (94)
probabilistic-programming10
python10
testing10
interpreter10
refactor10
deep-learning10
code-migration10
code-cleanup10
linter10
refactoring10
emulation10
develop10
ai-agent10
formatter10
formatters10
Programming languages (18)
Github contributions (5)
abseil/abseil-py
Sep 2017 - Jan 2023
Abseil Common Libraries (Python)
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:6 releases, 10 reviews, 307 commits in 5 years 4 months
Contributions summary:Yilei's contributions primarily focused on enhancing the testing infrastructure and fixing various issues within the `abseil-py` library. They improved testing by adding test cases and fixing test setup/execution problems. Further, they made code cleanup changes, and the user refactored and added test helpers.
python-librarypythontestingflagslogging
google-research/google-research
Mar 2021 - Nov 2022
Google Research
Role in this project:Back-end Developer
Back-end DeveloperContributions:85 commits in 1 year 8 months
Contributions summary:Yilei primarily contributed to code cleanup efforts, focusing on removing redundant or obsolete code elements. This involved removing no-op comments, unused comments related to Python 2 compatibility, and unnecessary disable comments in several files across various directories within the project. The changes also include migrating to absl-py APIs. The user also removed comments across multiple python files.
googlemachine-learningai
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