Taisuke O
Business Manager at ExecutiveSearch.AI
Chiyoda, Japan
Summary
🤩
Rockstar🎓
Top SchoolTaisuke O is a Business Manager with 13 years' experience specializing in IT, web and mobile recruitment, currently leading talent and client engagements at ExecutiveSearch.AI in Chiyoda. He has a track record guiding engineers from member level to PM and presales roles, managing a pipeline of over 1,000 open and confidential positions across large Japanese, foreign, SAP and game companies. Taisuke combines deep technical hiring knowledge—down to development environments, interview trends and practical preparation—with long-term career planning coaching for 3–10 year horizons. Before his current role he held senior consultant and IT section manager roles at RGF and Hays, building strong enterprise and cross-border search capabilities. He also contributes to open-source Scala tooling as a QA/test and backend contributor (scalatest, scalafix), which gives him practical empathy for developer workflows and code-quality expectations. Known for translating technical nuance into actionable career advice, he routinely helps candidates and clients align hiring with emerging tech trends.
13 years of coding experience
5 years of employment as a software developer
慶應義塾大学
Github Skills (9)
testing10
linter10
refactoring10
rewrite10
test-automation10
scala10
metaprogramming9
sbt8
macros8
Programming languages (10)
Github contributions (5)
scalacenter/scalafix
May 2017 - Jul 2021
Refactoring and linting tool for Scala
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 reviews, 28 commits, 9 PRs in 4 years 2 months
Contributions summary:Taisuke's contributions focused on improving the functionality and documentation of the `scalafix` tool. They fixed issues in the testkit, making the samples workable and addressing missing quotations. The user also addressed a specific issue related to explicit return types and refactored parts of the codebase, including fixing indents and reformatting by scalafmt. Furthermore, they updated the rules to handle different corner cases.
linterlintingmetaprogrammingrefactoringscala
scalatest/scalatest
Jun 2021 - Jun 2021
A testing tool for Scala and Java developers
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 commits, 1 PR, 4 comments in 7 days
Contributions summary:Taisuke primarily contributed to the testing aspects of the `scalatest` project, focusing on the `diagrams` module. Their commits involve adding and modifying tests within `DirectDiagrammedAssertionsSpec.scala` and `DiagramsSpec.scala` to validate the behavior of Diagrams assertions, particularly concerning vararg methods and custom list implementations. They also addressed macro errors in the Diagrams module, refining the assertion logic.
testingjavascalatest-runner
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