Wataru Ｍatsui
Software Engineer at さび開発
Kawasaki, Japan
Summary
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SeniorWataru Ｍatsui is a software engineer with 11 years of experience building cloud-native services and infrastructure from Kawasaki, Japan. He leads Code-as-Infrastructure initiatives using GCP and Kubernetes to enable continuous deployment of growing digital services. Proficient in Rust, Scala, Go, and PHP, he architects web applications and selects middleware that match service characteristics rather than forcing one-size-fits-all designs. His work emphasizes pragmatic DevOps—designing environments and team practices that make development and operations sustainable. After roles at CyberAgent, NUBEE, and YUMEMI, he now runs freelance projects under 3bi.tech, blending hands-on engineering with architectural thinking. A pragmatic polyglot, he often pairs newer languages like Rust with proven platforms to reduce operational risk while improving performance.
11 years of coding experience
9 years of employment as a software developer
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (51)
rust-lang10
monitoring10
observability10
observability-data10
agent10
datadog10
stream-processing10
high-performance10
cloud-native10
telemetry10
data-transformation9
etl9
cli8
continuous-integration8
runc8
Programming languages (7)
Github contributions (5)
watawuwu/cargo-launcher
Dec 2018 - Mar 2019
If the cargo project is a binary crates, this tool can register the binary in the following launcher.
Contributions:9 releases, 66 commits, 15 PRs in 2 months
followingrustcargolaunchercrates
watawuwu/sample-url-tool
Dec 2018 - Nov 2020
Contributions:3 releases, 8 pushes, 1 branch in 2 years
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