Yoichi Fujimoto
Software Engineer at Open Collector, Inc.
Tokyo, Japan
Summary
👤
SeniorYoichi Fujimoto is a seasoned software engineer based in Tokyo with 17 years of experience building web applications using Python and JavaScript. He has delivered backend APIs and rich front-end experiences across payments and FinTech domains at companies like BASE, Merpay (Mercari), and Open Collector. His background spans startups and product teams, including a co-founder role, giving him both hands-on engineering depth and product-oriented intuition. Yoichi frequently works with Django, Flask, Pyramid, React and Vue, and focuses on reliable, secure systems for finance and banking services. Less obvious: he blends entrepreneurial experience with long-term platform work, making him comfortable shipping from prototypes to production at scale.
17 years of coding experience
10 years of employment as a software developer
Stackoverflow
7,299reputation
1.0mreached
5answers
1question
docker
top-1%
Github Skills (44)
docker10
raycast10
server-side-javascript10
python-bindings10
indent9
php9
controlled8
preset8
npm8
typescript7
lynx7
linux-containers6
firebase6
webapp6
haskell6
Programming languages (16)
Github contributions (5)
payjp/payjp-php
Sep 2015 - Aug 2018
PAY.JP sdk for PHP
Contributions:1 release, 3 reviews, 34 commits in 2 years 11 months
php
wozozo/payjp-python
May 2020 - Apr 2025
PAY.JP python bindings
Contributions:8 pushes, 1 branch in 4 years 11 months
paypythonpython-3-6python-bindingspyinstaller
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