Jay Oh
CEO & Co-Founder at HayanMind Inc.
Seoul, South Korea
Summary
🤩
Rockstar🎓
Top SchoolJay Oh is a founder-CEO and product-focused engineer with 11 years of experience building AI-driven consumer apps and startups from Seoul. As co-founder of HayanMind he led RedKiwi to over 3 million downloads across Japan and Korea and launched Monetai, an AI-powered IAP revenue booster that blends user psychology with monetization. He combines hands-on React Native front-end work—evidenced by contributions to the popular react-native-copilot walkthrough tool—with PhD-level research experience from KAIST and internships at Microsoft Research Asia and TU Berlin. Jay’s background spans product, research, and operations, having earlier built museum audio guides and education apps through prior ventures. He’s fluent at turning research insights into user-centric mobile experiences and pragmatic growth strategies. Based in Seoul, he marries academic rigor with startup grit to ship scalable, engagement-driven products.
11 years of coding experience
1 year of employment as a software developer
Doctor of Philosophy (Ph.D.), Data Science, Ph.D, Doctor of Philosophy (Ph.D.), Data Science, Ph.D at KAISTBachelor of Engineering (BE), Communication Engineering, Bachelor of Engineering (BE), Communication Engineering at Hanyang UniversityRiskmaster, Entrepreneurship, Riskmaster, Entrepreneurship at Draper University
English, Korean
Stackoverflow
364reputation
13kreached
2answers
8questions
Github Skills (19)
javascript10
react-native10
tooltip10
tooltips10
react10
ui-design9
user-manual9
front-end-development9
uid9
flowtype6
firebase-admin6
firebase6
dom6
android6
angularjs6
Programming languages (13)
Github contributions (5)
mohebifar/react-native-copilot
Jul 2018 - Aug 2018
Step-by-step walkthrough tooltip for your react native app
Role in this project:
Front-end Developer
Front-end DeveloperContributions:6 commits, 1 PR, 9 comments in 1 month
Contributions summary:Jay primarily contributed to the front-end aspects of the "react-native-copilot" repository, a tool for creating step-by-step walkthrough tooltips in React Native applications. They introduced and subsequently reverted an `onStop` parameter for the `start()` function, indicating an attempt to manage and customize the tutorial's lifecycle. Further contributions involved merging changes, adjusting UI elements, and integrating a switch component for toggling a step, demonstrating a focus on feature implementation and UI/UX integration within the React Native environment.
react-nativenative-appreactreact-native-apptooltip
Kaist-ICLab/ActivityRecognitionSkelecton
May 2016 - Jun 2016
Contributions:3 commits, 2 PRs, 1 push in 16 days
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