Satoshi Matsumoto
Staff Software Engineer at Treasure Data
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolSatoshi Matsumoto is a Staff Software Engineer based in Tokyo with 13 years of experience building backend systems, infrastructure, and developer tooling. He has led work on workflow and core API systems at Treasure Data and previously drove authentication, container orchestration migrations, and observability platform builds at Cookpad. Comfortable across Go, Ruby, and systems-level work, he combines backend engineering with SRE and DevOps expertise—evidenced by contributions to gopacket, Prometheus exporters, and Packer templates. His open-source history shows a knack for cross-platform compatibility and rigorous test automation, from enhancing packet decoders to broad OS support for server testing frameworks. He holds a Master’s in Computer Science from Tokyo Institute of Technology and is known for turning complex infra migrations and security-sensitive features into reliable, well-tested production services.
13 years of coding experience
10 years of employment as a software developer
Master's Degree, Computer Science, Master's Degree, Computer Science at Tokyo Institute of Technology
Japanese, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (53)
operating-system10
unit-testing10
spec10
develop10
system-configuration10
scripting10
freebsd10
testing10
grepl10
amazon-elasticsearch10
ipsec10
bash10
capi10
grep10
openbsd10
Programming languages (12)
Github contributions (5)
kaorimatz/packer-templates
Nov 2013 - Jun 2018
Packer templates for Vagrant base boxes
Role in this project:
DevOps Engineer
DevOps EngineerContributions:417 commits, 18 PRs, 113 pushes in 4 years 7 months
Contributions summary:Satoshi primarily focused on creating and maintaining Packer templates for various operating systems, enabling the automated creation of Vagrant base boxes. Their contributions involved writing shell scripts to configure the base operating systems, install necessary packages, and set up user accounts and SSH keys. They also updated existing templates and adapted them for different versions and architectures, reflecting a strong understanding of infrastructure automation and configuration management.
vagrantvmsboxansiblecloud-init
prometheus-community/elasticsearch_exporter
May 2019 - Jun 2019
Elasticsearch stats exporter for Prometheus
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 commits, 5 PRs, 5 comments in 24 days
Contributions summary:Satoshi primarily contributed to the `elasticsearch_exporter` project by adding and modifying metrics related to Elasticsearch. They introduced new metrics for warmer statistics and query cache performance, enhancing the exporter's ability to monitor these aspects of Elasticsearch. Furthermore, they updated the existing metrics to follow best practices. This work focused on improving the exporter's functionality and providing more detailed monitoring data for Elasticsearch.
exporterprometheus-exporterstatsprometheuselasticsearch
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