Yuta Adachi
Software Engineer Technical Lead at Mercari, Inc.
Matsue, Japan
Summary
👤
Senior🎓
Top SchoolYuta Adachi is a seasoned software engineer and technical lead with 12 years of experience building and operating high-throughput services from Matsue, Japan. He blends hands-on development with strong SRE instincts—having led reliability, architecture, incident reduction, and cost-optimization efforts at Chatwork and now guiding engineering at Mercari. His track record includes migrating search infrastructure for scalability and savings, replacing legacy platforms with Kubernetes, and driving PHP-to-modern-stack upgrades while improving developer productivity and CI. Comfortable across backend, databases, and operational tooling, he excels at turning performance pain points into resilient, maintainable systems. Colleagues rely on him for pragmatic architectural guidance and for bridging product needs with reliable, scalable operations.
12 years of coding experience
11 years of employment as a software developer
Bachelor of Engineering (B.E.), CS, Bachelor of Engineering (B.E.), CS at 岡山大学
Japanese, Chinese
Github Skills (34)
twitter-snowflake10
sendgrid10
authentication9
kubernetes9
prometheus-exporter9
charts9
authorization9
helm9
php9
oauth9
phpstorm9
shell8
cli8
prometheus8
interpreter8
Programming languages (11)
Github contributions (5)
chatwork/sendgrid-stats-exporter
Oct 2020 - Jan 2021
Prometheus exporter for SendGrid daily metrics exposed by SendGrid Stats API(v3).
Contributions:7 releases, 71 commits, 16 PRs in 2 months
prometheus-exportersendgrid
ada-u/chocoflake
Dec 2014 - Jan 2023
chocoflake is an implementation of twitter Snowflake concept.
Contributions:52 commits, 51 PRs, 55 pushes in 8 years 2 months
snowflaketwitter-snowflake
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