Takashi Iiguni
Site Reliability Engineer at Ubie 株式会社
Kashiwa, Japan
Summary
👤
Senior🎓
Top SchoolTakashi Iiguni is a Site Reliability Engineer with a decade of experience building and operating cloud-native infrastructure across major Japanese tech firms, currently at Ubie. He has strong backend and DevOps roots from roles at NTT Communications—where he developed network controllers for SDPF cloud/server and led CI improvements—and earlier SRE work at Hatena and platform teams at Yahoo and Cybozu. Takashi contributes to low-level open-source projects such as youki, a Rust container runtime, focusing on process initialization, cgroups support, and test-suite robustness, reflecting deep system-level expertise. With a master’s in reliability information systems engineering, he blends research-informed rigor with hands-on production troubleshooting and continuous-integration craftsmanship. An understated strength is his ability to move between high-level orchestration (Kubernetes/ECS/Fargate) and nitty-gritty runtime internals, making him effective across the full container lifecycle.
10 years of coding experience
2 years of employment as a software developer
修士, 工学研究科 信頼性情報システム工学専攻, 修士, 工学研究科 信頼性情報システム工学専攻 at 香川大学大学院学士, 工学部 電子・情報システム工学科, 学士, 工学部 電子・情報システム工学科 at 香川大学
Github Skills (11)
system10
occi10
container10
rust10
system-programming10
cgroups10
testing8
dockers7
kubernetes-pods7
docker7
kubernetes7
Programming languages (14)
Github contributions (5)
youki-dev/youki
Aug 2021 - Jun 2022
A container runtime written in Rust
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 reviews, 23 commits, 5 PRs in 9 months
Contributions summary:Takashi primarily contributed to the container runtime's core functionality, with a focus on process initialization and configuration. Their work included refactoring code, fixing bugs, and adapting to changes in the underlying dependencies (oci-spec-rs) to support cgroup functionalities. The contributions demonstrate a deep understanding of system-level programming and the containerization lifecycle. They also worked on improvements to the test suite and code formatting.
containersrustruntimedockerkubernetes
sai-lab/go-template
Sep 2020 - May 2021
Template repository for Golang developper
Contributions:1 release, 12 reviews, 29 PRs in 7 months
golangtemplatedevelopper
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.