Li Y
Founder & CEO at Known LLC
Shenzhen, Guangdong Province, China
Summary
🤩
Rockstar🎓
Top SchoolLi Y is a founder-CEO and seasoned software leader with 12 years of engineering experience and over five years of continuous entrepreneurship, now seeking opportunities in Singapore. He builds and scales technical organizations from the ground up—having grown a digital media engineering department to 120+ people and led product and infrastructure efforts across education, healthcare, and government projects. Hands-on across Python/Django, distributed systems, IoT and AI, his work spans cloud/CDN design, real-time messaging, and embedded networking for firms like Panasonic and SingTel-backed projects. A committed open-source contributor, he has improved Python/typeshed typings and contributed to Django and popular libraries, earning GitHub recognitions such as Arctic Code Vault Contributor. Unusually for a CEO, he remains deeply technical—regularly doing code reviews and low-level type annotations—bringing both strategic leadership and day-to-day engineering rigor.
12 years of coding experience
4 years of employment as a software developer
硕士, Computer Software Engineering, 硕士, Computer Software Engineering at Peking University学士, Computer Software Engineering, 学士, Computer Software Engineering at Xidian University
Chinese, English
Github Skills (10)
dynamic-typing10
markdown10
optional-typing10
static-typing10
markdown-it10
strong-typing10
python10
implicit-typing10
stub10
stubs10
Programming languages (5)
Github contributions (5)
python/typeshed
May 2022 - Jul 2022
Collection of library stubs for Python, with static types
Role in this project:
Backend Developer
Backend DeveloperContributions:4 reviews, 16 commits, 17 PRs in 2 months
Contributions summary:Li primarily contributed to type hinting and annotation of the Python code base within the `typeshed` repository. Their work focused on adding type annotations to methods and variables within the Markdown stubs, specifically within `markdown/util.pyi` and `markdown/core.pyi` files. This involved annotating methods like `isBlockLevel()`, `parseBoolValue()`, and `Registry` methods, contributing to improved code clarity and maintainability. Additionally, they removed an outdated function.
mypystatic-typingpythonstubtypechecker
dookbook/dookbook-doc-webfrontend
Oct 2019 - Jun 2020
Dookbook® Library (Subject: Web Frontend: HTML+CSS+JavaScript)
Contributions:342 PRs, 428 pushes, 3 branches in 8 months
subjectcssjavascriptfrontend-htmlhtml-css-javascript
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