Sophie Ha
Frontend Developer at PayPay Corporation
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolSophie Ha is a frontend developer with 9 years of experience building scalable, user-focused web applications across fintech and travel-tech. Currently at PayPay in Tokyo, she redesigned a mission-critical coupon system and led a permission-system overhaul, delivering zero-incident rollouts and a maintainable three-layer access model. Comfortable across Vue3/TypeScript, Storybook and experimentation tools, she brings a systems-first approach—designing maintainable architectures rather than just shipping features. Earlier roles include building an interactive pricing spreadsheet and SPAs with AngularJS, showing a pattern of tackling complex UI state and edge-case interactions. Known for strong ownership and a reliability-driven mindset, she thrives when trusted to design solutions end-to-end.
9 years of coding experience
4 years of employment as a software developer
Master of Science (MSc), Design and Digital Media, Master of Science (MSc), Design and Digital Media at The University of EdinburghBachelor of Arts - BA, Journalism, Bachelor of Arts - BA, Journalism at Soochow University (CN)
Chinese, English, Japanese
Github Skills (29)
cypress10
hexo10
testing-library10
form-validation10
validate10
testing9
vee-validate9
angular-testing-library9
validations9
validation9
svelte-testing-library9
component-testing9
vue9
react-testing-library9
vue-form9
Programming languages (6)
Github contributions (5)
FrontendSophie/hexo-theme-autumn
Apr 2018 - Mar 2020
🍊A salute to the classic.
Contributions:4 releases, 19 commits, 2 PRs in 1 year 11 months
reactsalute
FrontendSophie/hexo-infinite-scroll
Apr 2018 - Jul 2019
⌛A fake infinite loading plugin for hexo. 🎉v2 released!
Contributions:5 releases, 19 commits, 21 pushes in 1 year 2 months
hexo
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