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Latest Article

読書メモ：数学ガール5 ガロア理論

『暗号理論と楕円曲線――数学的土壌の上に花開く暗号技術』をきっかけに、離散数学や抽象代数学のエッセンスをより深く理解したいと思い、『数学ガール』を読み始めました。そして、ついに抽象代数学を中心とした『数学ガール5 ガロア […]

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読書メモ：プログラマの数学

難解な数学をわかりやすく解説してくれる「数学ガール」シリーズで知られる結城浩先生の、プログラミングに役立つ数学の書籍があると知り、プログラミング力の向上を目指して早速購入しました。 全体として、数式の使用を最小限に抑え、 […]

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Career Timeline

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2006-2010

NTT DATA SMS

  • Contractor
  • Banking System Management
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2011

Persol Cross Technology (TempStaff Tech)

  • Dispatch
  • Communication System Infrastracture Technical Support
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2012-2014

Amadeus IT Group

  • Permanent
  • Travel System SaaS Technical Support
  • Internal IT for Local Office
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2014-2016

Gaitame Finest

  • Permanent
  • FX Related Business System
  • Internal IT
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2016-2017

Veritas Technology

  • Permanent
  • Backup System Technical Support
  • NetBackup with Heterogeneous Environments
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2017-2023

National Institute of Material Science

  • Contractor
  • Full Stack Engineer
  • Research Data Systems
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2023-

Solid Oak

  • Freelance
  • Full Stack Engineer

OpenSource Contribution

Ethereum.org ethorg-img

Translator

190,000 Translated
28,000 Approved
  • Ethereum.org Translation Languague Lead Role
  • Japanese Translation Counts No.1
  • World Translation Counts No.2
  • Ethereum Translator Certificate Achieved

Contributor

12 Pull Requests in Total
  • Mainly content improvements

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Translator

3 Articles
  • Optimism article translation as a contributor role
  • RetroPGF (Retroactive Public Goods Funding)
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POAP ethorg-img

Portfolio Skill & Education

All Development Infrastructure Management
Programming
  • PHP, Ruby, Java, Bash, etc.
  • Acquirable any other languages
Monitoring
  • Zabbix, Prometheus, Grafana, etc
  • Implementing on various nodes in an effective way
Platform
  • VMware, K8s, Docker, KVM, etc.
  • Have experiences in heterogeneous environments
Methodologies
  • PMP, ITIL, DevOps, Agile, etc.
  • Have eager to introduce such methodologies
OS
  • Linux, Windows, UNIX, etc.
  • Choosing the most preferable OS
Tools
  • Github, Gitlab, Redmine, CI/CD, etc.
  • Have a stance to automate processes such as CI/CD
  • Installing on premises
Middleware
  • DB: Elastic Search, MySQL Relevance, PostgreSQL, Redis, etc.
  • WEB: Apatch, Nginx, Tomcat, etc.
  • Choosing best Database or Middleware(NoSQL or SQL)
Networking
  • F5, Swiching, Routing on CISCO, K8s, VMware
  • Have an understanding of TCP/IP
  • Server Network is preferable
Education
  • Advanced Institute of Industrial Technology (MS in Information Tech)
  • Tokyo University of Science (FS in Div II Chemistry)
  • IT Cert: IPA (SM, NW, RSC, AP), CCNA, etc.
  • English/Business: TOEIC 930, Eiken Grade 1, Bookkeeping Cert etc.

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