Toshiyuki Takahashi
Manager at Trust Co., Ltd.
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolToshiyuki Takahashi is a Tokyo-based manager and consultant with 16 years’ experience leading cross-functional teams in digital, FinTech, security, and business transformation projects. He combines hands-on project and product leadership—managing budgets from ¥1M to ¥400M and driving PMO, requirements, and release plans—with a talent for team building and stakeholder communication. A pragmatic connector, he has launched NGO initiatives, supported FX trading software and data-center sales, and now focuses on AI adoption and utilization. His open-source contributions to prominent Scala projects like Play Framework and scalikejdbc reveal deep backend engineering chops and a habit of improving testing and compatibility across ecosystems. Multilingual and certified in AI and generative tools, he blends technical fluency with service-minded leadership and a persistent focus on impact and continuous self-improvement. Colleagues describe him as thoughtful, social, and a leader who turns complex requirements into practical outcomes.
16 years of coding experience
7 years of employment as a software developer
翻訳学部, 翻訳学科, 翻訳学部, 翻訳学科 at 日本外国語専門学校学士, Law, 学士, Law at 創価大学
Japanese, Chinese, Chinese
Stackoverflow
1,156reputation
80kreached
5answers
4questions
Github Skills (32)
api-design10
testing10
template-engine10
jdbc10
java10
csv-parser10
scala10
javas10
fileio10
file-processing10
file-handling10
web-framework10
csv10
file-access10
playframework10
Programming languages (14)
Github contributions (5)
tototoshi/scala-csv
Mar 2012 - Sep 2022
CSV Reader/Writer for Scala
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 176 commits, 81 PRs in 10 years 7 months
Contributions summary:Toshiyuki significantly contributed to the `scala-csv` project by implementing features to support java.io.File for both reading and writing CSV files. They also added the functionality to read the next line with #readNext and provided the option to append lines to the CSV file. Furthermore, the user refactored the API to provide factory methods. These updates improved the library's usability and flexibility.
csvcsv-readerreader-writerscalareader
playframework/playframework
Jan 2013 - Sep 2022
The Community Maintained High Velocity Web Framework For Java and Scala.
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 26 commits, 5 PRs in 9 years 10 months
Contributions summary:Toshiyuki primarily focused on enhancing the Play Framework's testing capabilities by adding and modifying features related to in-memory database configurations and content handling within test environments. They added support for H2 database options, allowing for more flexible database configurations for testing. The user also implemented new functionalities for extracting content as strings, bytes, and JSON from results. Furthermore, the user addressed a bug related to error message formatting within the Java form validation.
restfulplay-frameworkframeworkplayframeworkjvm
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