Yoon Kim
Data Scientist
Seoul, South Korea
Summary
🤩
Rockstar🎓
Top SchoolYoon Kim is a data scientist with 10 years of experience blending financial engineering, quantitative trading insights, and production-grade machine learning to solve business problems. Currently at Viva Republica (Toss), he designs data-driven solutions informed by prior roles building automated ETL pipelines, continuous-training XGBoost models, and neural-network-based campaign simulators at Criteo. His background as an FX dealer and master’s training in financial engineering (KAIST, UIUC) give him a rare mix of market intuition and rigorous quantitative skills. He also contributes to open-source iOS tooling such as ReactorKit, demonstrating fluency across both backend data systems and client-side engineering. Colleagues rely on him to turn complex statistical ideas into deployable analytics that drive stakeholder decisions.
10 years of coding experience
2 years of employment as a software developer
University of Illinois Urbana-ChampaignBachelor of Business Administration (BBA), Finance, General, 3.9/4.5, Bachelor of Business Administration (BBA), Finance, General, 3.9/4.5 at 성균관대학교Master's degree, Financial Engineering, 3.6/4.3, Master's degree, Financial Engineering, 3.6/4.3 at 한국과학기술원(KAIST)
Stackoverflow
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Github Skills (7)
swift10
rxswift10
reactive-programming10
architecture9
testing9
architectures9
ios8
Programming languages (4)
Github contributions (5)
ReactorKit/ReactorKit
Oct 2018 - Jan 2022
A library for reactive and unidirectional Swift applications
Role in this project:
iOS Developer
iOS DeveloperContributions:34 reviews, 24 commits, 20 PRs in 3 years 3 months
Contributions summary:Yoon primarily focused on updating and extending the `ReactorKit` library, a library for reactive Swift applications. Their contributions include refactoring code to use `StateRelay` instead of deprecated `Variable`, adding and testing new features, and updating dependencies, specifically, upgrading to RxSwift 6.0.0. These changes involved implementing new test cases for `StateRelay` and introducing the `Pulse` feature.
unidirectionalreactorkitrxswiftreactive-programmingswift
tokijh/RxSwiftExtensions
Aug 2018 - Jan 2019
Frequently used extensoins in RxSwift
Contributions:7 releases, 49 commits, 7 PRs in 4 months
rxswiftswiftios
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