Ken Iwata
Senior Software Engineer at Treasure Data
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolKen Iwata is a Senior Software Engineer with six years of experience building full-stack systems across frontend (React, Vue, TypeScript), backend (Kotlin/Java, Spring Boot, Ktor), and cloud infrastructure (AWS, Azure, Kubernetes). He has led and improved critical e-commerce systems at Fast Retailing—overseeing a 14-person international team and cutting alert volume by 80% through query optimization, multithreading, and observability improvements. His work spans databases (Postgres, MySQL), messaging and caching (Kafka, Redis), and mobile (Flutter, Android), reflecting a pragmatic ability to ship end-to-end products that scale. At Finatext he architected a BFF and native app that achieved a 4.7 App Store rating, and at Fujitsu he delivered mission-critical financial systems using Agile and XP practices. Now at Treasure Data, he continues to blend hands-on engineering with operational rigor to drive measurable business outcomes. Based in Chiyoda, Japan, he combines cross-border technical leadership with a knack for turning performance problems into lasting platform improvements.
5 years of coding experience
9 years of employment as a software developer
Bachelor of Commerce - BCom, Bachelor of Commerce - BCom at Keio University
English, Japanese
Github Skills (10)
biometrics8
unlock6
fingerprint6
integrity6
flutter-plugin6
faceid6
flutter5
touchid5
authentication5
dart4
Programming languages (2)
Github contributions (5)
ken0105/jobcan-tools
May 2021 - Jun 2022
Contributions:18 commits, 2 PRs, 16 pushes in 1 year
ken0105/competitive-programming
Jan 2021 - Jun 2021
Contributions:44 pushes, 1 branch in 5 months
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