Toru Tamagawa
Data Engineer
Chiyoda, Japan
Summary
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SeniorToru Tamagawa is a data and backend engineer with 13 years in the industry and 8+ years focused on LLM, backend, and data engineering across cloud-native systems. He architected high-throughput advertising infrastructure handling 100k+ RPS and built ML demand-forecasting pipelines at Fast Retailing, pairing production-grade scalability with practical latency and memory optimizations. Comfortable across Scala, TypeScript/Node.js, Go, and Python, he designs end-to-end systems on GCP (Dataflow, Cloud Run, Pub/Sub) and automates infra with Terraform and CI/CD. Toru blends hands-on feature development with system architecture—his work spans REST APIs, Dataflow pipelines, and monitoring/observability via DataDog—reflecting a pragmatic focus on operability and continuous improvement. Based in Chiyoda, Japan, he shares technical insights on GitHub and a developer blog, signaling an engineer who communicates design decisions as well as he implements them.
13 years of coding experience
5 years of employment as a software developer
English, Japanese
Github Skills (63)
ios10
webdriver10
selenium10
redis10
amqp10
freestyle10
windows10
automation10
task-manager10
android10
appium10
macos10
bitrise10
w3c10
automation-framework10
Programming languages (7)
Github contributions (5)
jenkinsci/discard-old-build-plugin
Jan 2013 - Dec 2014
More build discard settings for freestyle jobs
Contributions:29 commits in 1 year 10 months
discardfreestylesettingsjobs
Magic-Pod/bitrise-step-magic-pod
Apr 2020 - Mar 2023
Contributions:6 reviews, 10 PRs, 14 pushes in 2 years 10 months
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