Ben Hsieh
Engineering Manager at Mercari, Inc.
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolBen Hsieh is an engineering manager and full-stack technologist based in Tokyo with 10 years of experience building web, mobile, and AI-native applications across marketplaces, fintech, and media. He leads cross-functional teams at Mercari, evolving CRM and payment platforms while aggressively integrating LLM capabilities to streamline operational workflows. Hands-on across frontend, backend, infrastructure, and AI/LLM stacks, he has architected configurable cross-platform UI rendering used by millions and driven cross-org initiatives. A prolific open-source contributor, Ben created React Native libraries with millions of npm downloads that are used in products like Amazon Kindle and Discord, and implemented Android modules such as RNSpinkit. He blends product-focused engineering with technical leadership and hiring, mentoring engineers to expand their impact. Fluent in building no-code and visual empowerment tools, he often turns complex integration challenges into reusable platform solutions.
11 years of coding experience
6 years of employment as a software developer
Master's degree, Computer science, Master's degree, Computer science at Chang Gung University
English, Japanese, Chinese
Github Skills (7)
javas10
mobile-development10
react-native10
android10
java10
gradlew9
gradle9
Programming languages (6)
Github contributions (5)
maxs15/react-native-spinkit
May 2016 - Nov 2016
A collection of animated loading indicators for React Native
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:50 commits, 5 PRs, 12 comments in 5 months
Contributions summary:Ben primarily focused on adding and modifying Android-specific code for the React Native Spinkit library. They implemented the `RNSpinkit` Android module, including the necessary Java code to render SpinKit animations and handle properties such as color, size, and animation type. The user also added an example application for Android to demonstrate the usage and functionality of the library and integrated RNPM to automate the module's installation and linking. Furthermore, the user addressed issues and fixed errors within the Android module.
react-native
wkh237/node-map-tiles-editor
Oct 2016 - Jan 2017
A browser based map tiles editor and generator.
Contributions:25 commits, 1 PR, 21 pushes in 2 months
map-tilesmaptile-enginetiled-map-editornodejs
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