Ryo Utsunomiya
Senior Software Engineer at LY Corporation
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolRyo Utsunomiya is a Senior Software Engineer based in Tokyo with 14 years of experience building performant, scalable web and backend systems. He leads a five-engineer team at LY Corporation responsible for a search platform used by millions, where his introduction of Elasticsearch cut average search latency from ~1s to 0.2s and increased availability. Previously he led full-stack migrations at Ikyu Corporation, modernizing front-ends to Vue/Nuxt and backend services from .NET to Go with GraphQL to boost developer productivity and UX. Comfortable across Java, Spring Boot, PostgreSQL, and Elasticsearch, he pairs hands-on engineering with team leadership and a data-informed approach—now collaborating closely with data scientists to further improve search relevance. An engineer who gravitates toward measurable performance wins, he blends legacy migration experience with production-grade search and API expertise.
13 years of coding experience
8 years of employment as a software developer
High School Diploma, High School Diploma at Uwajima Higashi Senior High SchoolRetired, Retired at 東京大学 / The University of Tokyo
Japanese, English
Stackoverflow
23reputation
3kreached
0answers
2questions
Github Skills (135)
vue-composition-api10
form-validation10
vanilla-javascript10
compressor10
middleware10
wordpress10
validation10
uglifyjs10
api10
vue-datepicker10
vee-validate10
router10
vue10
vue3-composition-api10
validations10
Programming languages (8)
Github contributions (5)
ryo-utsunomiya/refactoring-2nd-ts
Nov 2018 - Jan 2021
Contributions:58 commits, 36 pushes in 2 years 1 month
ryo-utsunomiya/ts-next
Sep 2019 - Feb 2022
Contributions:16 commits, 6 PRs, 11 pushes in 2 years 5 months
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