Yosuke Hara
Machine Learning Engineer at Lions Data
Japan
Summary
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RockstarYosuke Hara is a Machine Learning Engineer and distributed systems specialist with 19 years of experience designing and delivering distributed computing, database, storage, and ML platform solutions from Japan. As the chief architect and primary backend contributor to the open-source LeoFS storage system, he combines deep systems engineering—benchmarking, S3 auth, HTTP and DB integration—with production-focused tooling and build automation. He excels at bridging low-level storage concerns and higher-level ML platform needs, including data lake design and operational reliability. Known for pragmatic problem-solving, he brings a rare mix of hands-on backend development and architecture-level thinking that helps teams scale stateful systems for ML workloads.
19 years of coding experience
Github Skills (12)
http10
erlang10
testing9
benchmark9
benchmarking9
bash8
aws-s38
s3-bucket8
version-control8
build-automation8
amazon-s38
distributed-systems7
Programming languages (7)
Github contributions (5)
leo-project/leofs
Jun 2012 - Jun 2020
The LeoFS Storage System
Role in this project:
Back-end Developer
Back-end DeveloperContributions:60 releases, 1302 commits, 155 PRs in 8 years 1 month
Contributions summary:Yosuke primarily contributed to the backend of the LeoFS storage system. Their initial commit introduced a benchmarking suite for testing. Subsequent commits involved modifications to existing code related to S3 authentication and added or modified scripts for build processes, version updates, and dependency management, indicating a focus on the project's internal workings and testing infrastructure. They also improved the system's integration with HTTP and database components.
bigtablenasblob-storageazure-blob-storagegridfs
leo-project/leofs_doctor
Feb 2016 - Apr 2016
Contributions:2 releases, 35 commits, 1 PR in 2 months
investigationnodesnodejsotp-applicationsotp
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