Jaeyong Sung
Researcher at Cartesia
Seoul, South Korea
Summary
🤩
Rockstar🎓
Top SchoolJaeyong Sung is a software researcher and engineer with eight years of experience, currently based in Seoul and working at Cartesia after serving as CTO of Nari Labs (YC F25) and as a sergeant/software engineer at the Republic of Korea Air Force HQ. He blends applied research with hands-on backend and test automation work, notably contributing an only_used_in_recursion lint to the high-profile rust-clippy project to catch subtle recursive-argument issues. Comfortable bridging startup speed and disciplined military engineering, he repeatedly ships tooling and tests that improve code correctness and maintainability. A KAIST computer science undergraduate and alumni of a gifted science high school, he pairs rigorous academic foundations with practical system-building. Colleagues describe him as pragmatic and quietly inventive, often surfacing edge-case bugs before they reach production.
8 years of coding experience
High School Computer Science, High School Computer Science at Gyeonggi Science High School for the Gifted (경기과학고등학교)Bachelor's degree Computer Science, Bachelor's degree Computer Science at Korea Advanced Institute of Science and Technology
Stackoverflow
70reputation
5kreached
1answer
6questions
Github Skills (16)
linter10
linting10
clippy10
rust10
lint10
test-automation10
data-structure9
algorithm9
data-structures9
algorithms9
html6
gets6
css6
flexbox6
fonts6
Programming languages (18)
Github contributions (5)
rust-lang/rust-clippy
Feb 2022 - Apr 2022
A bunch of lints to catch common mistakes and improve your Rust code. Book: https://doc.rust-lang.org/clippy/
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:4 reviews, 1 PR, 13 comments in 2 months
Contributions summary:Jaeyong primarily focused on developing a new lint within the Clippy linter for Rust, specifically targeting arguments used only in recursive calls. They implemented the `only_used_in_recursion` lint, including code to analyze function parameters and identify unused arguments in recursive functions. Furthermore, they added tests to ensure the lint functions correctly and handles various scenarios. This involved changes to the linting logic and the addition of relevant test cases.
rustlint
buttercrab/wtfpython-ko
Dec 2019 - Jan 2022
놀라운 예제들을 통해서 파이썬을 탐험하고 이해해보세요!
Contributions:13 reviews, 107 commits, 54 PRs in 2 years 1 month
pythonwtfgotchassnippetspython3
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.