Kohei Yamada
エンジニア at 自営/フリーランス
Chiyoda, Japan
Summary
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Rockstar🎓
Top SchoolKohei Yamada is a seasoned engineer with 13 years of experience building full-stack web applications and bespoke tools, currently working as a freelance software engineer in Chiyoda, Tokyo. His background spans backend Ruby on Rails work and AngularJS front-end development across startups and enterprise projects, plus prior experience designing ticketing systems and BYOD/MDM network infrastructure at Sony Global Solutions. Kohei is an active contributor to open-source projects such as fusuma, where he implemented multitouch gesture recognition and a custom configuration/command execution system for Linux, highlighting a taste for low-level input handling as well as user-facing features. He combines pragmatic product delivery with a knack for refactoring and creating compact, maintainable configurations—skills honed through diverse roles at companies like BizteX and Increments. Trained in information engineering at Kyushu Institute of Technology, he brings both systems-level curiosity and practical full-stack fluency to freelance engagements.
13 years of coding experience
6 years of employment as a software developer
学士, 情報工学, 学士, 情報工学 at 九州工業大学 / Kyushu Institute of Technology
Japanese, Chinese
Stackoverflow
61reputation
3kreached
0answers
5questions
Github Skills (19)
linux10
ruby10
gesture-recognition10
command-execution9
configuration-management9
swipeview8
swipe-gestures8
touchswipe8
lib8
basic-authentication6
go6
bearer-token6
sql6
python-requests6
amazon-web-services6
Programming languages (13)
Github contributions (5)
iberianpig/fusuma
Oct 2016 - Jan 2023
Multitouch gestures with libinput driver on Linux
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:17 reviews, 451 commits, 83 PRs in 6 years 4 months
Contributions summary:Kohei primarily contributed to the development of the fusuma project, focused on handling multitouch gestures on Linux. Their work involved implementing swipe and pinch gestures, including the logic for recognizing and interpreting these gestures. They refactored and organized the code, introducing a custom configuration system and implementing the ability to execute shell commands based on detected gestures.
touchpadlinuxswipemultitouchgestures
iberianpig/fusuma-plugin-thumbsense
Dec 2022 - Sep 2024
Remapper from key to click only while tapping the touchpad. Implemented as Fusuma Plugin.
Contributions:4 PRs, 44 pushes, 3 branches in 1 year 8 months
fusumafusuma-pluginkeyboardremaptouchpad
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