Keita Arai
Software Engineer at Freelance
United Arab Emirates
Summary
👤
Senior🎓
Top SchoolKeita Arai is a seasoned software engineer with 15 years of experience building web and mobile applications across Southeast Asia and the UAE, currently specializing in Elixir and Phoenix. He brings deep Ruby on Rails, iOS, Flutter, JavaScript and AWS infrastructure experience from founding MeTA .inc and multiple freelance engagements. As a former CTO and long-time full‑stack practitioner, he comfortably spans backend, frontend and server operations, and is open to early-stage startup projects. Trained in biology and physics at the University of Tokyo, he combines analytical rigor with pragmatic engineering and a knack for translating research-like problem solving into production systems. Notably, he intentionally seeks collaborators with cross-domain skills—including hardware—reflecting a systems-level approach to product development.
15 years of coding experience
5 years of employment as a software developer
University of Tokyo
English, Japanese
Github Skills (26)
verify8
docbase7
deep-learning6
api6
pytorch6
api-client6
hanami6
firebase5
jwt5
authentication5
web-token5
json5
ruby4
monitor2
react2
Programming languages (7)
Github contributions (5)
ecpplus/ex-firebase-jwt
Mar 2019 - Apr 2023
Verify Firebase JSON Web Token
Contributions:1 review, 15 PRs, 15 pushes in 4 years 1 month
firebaseauthenticationjson-web-tokentokenverify
ecpplus/iso3166_2_jp
Sep 2016 - Dec 2019
iso3166_2_jp gem
Contributions:3 PRs, 14 pushes, 3 branches in 3 years 4 months
iso3166iso3166-2gemruby
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