Ruisong Li
Software Engineer at Duolingo
Champaign, Illinois, United States
Summary
👤
Senior🎓
Top SchoolRuisong Li is a software engineer with eight years of experience and a strong focus on front-end and general software development, currently building test infrastructure at Duolingo while completing a CS master's at UIUC. Proficient in JavaScript and Python, he emphasizes readable, extendable, and testable code and has hands-on experience refactoring parsers, processing large datasets, and prototyping web interfaces for research projects. He has supported core CS courses as a TA and course associate, demonstrating clear communication and instructional skill alongside engineering work. An appetite for minimalism shows up both in his concise coding style and an unusual personal habit—he typically eats once per day—which hints at discipline and focus in how he approaches problem solving.
8 years of coding experience
3 years of employment as a software developer
Master's degree, Computer Science, N/A, Master's degree, Computer Science, N/A at University of Illinois Urbana-Champaign
Github Skills (17)
react-router-v49
textual8
xml7
parser7
dom6
css-selectors6
css6
java6
elasticsearch5
html5
jsoup5
html-parser4
xss4
xpath4
team-project1
Programming languages (3)
Github contributions (5)
Ruisong4/Blog_new
Nov 2018 - May 2020
Contributions:15 pushes, 1 branch in 1 year 6 months
Ruisong4/CS411-PROJECT
Jan 2019 - May 2019
Contributions:41 pushes, 1 branch in 3 months
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