Ryo Yamashita
Business Portfolio Group, Corporate Strategy & Business Portfolio Department
Japan
Summary
🤩
Rockstar🎓
Top SchoolRyo Yamashita is a cross-disciplinary scientist and business strategist with 10+ years blending genetic and developmental biology expertise (Ph.D., Kumamoto University) with corporate innovation in pharma and health-tech. He has driven target discovery and genetically modified animal model programs at Takeda California, then pivoted to incubating digital therapeutics and non-pharmacological interventions at Astellas, where he led behavioral-change research adapting a Finnish GPS game for Japanese academic and commercial use. Now in corporate strategy and HaaS planning at Daiichi Sankyo, he evaluates technologies, markets, and new business opportunities spanning neuropsychiatric, motor, and heart-failure indications. Equally comfortable in the lab and in product roadmaps, he has founded and managed internal venture projects and contributed to notable open-source engineering work (including backend improvements to VOICEVOX and tooling in the Rust ecosystem), reflecting a rare mix of wet-lab rigor and hands-on software development.
11 years of coding experience
8 years of employment as a software developer
Bachelor of Engineering - BE, Faculty of Biology-Oriented Science and Technology (Genetic Engineering), Bachelor of Engineering - BE, Faculty of Biology-Oriented Science and Technology (Genetic Engineering) at 近畿大学Ph.D, Graduate School of Pharmaceutical Sciences (Developmental Biology and Genetics), Ph.D, Graduate School of Pharmaceutical Sciences (Developmental Biology and Genetics) at Kumamoto University
Github Skills (16)
dependency-management10
build-system10
rust10
api10
apidoc10
onnxruntime9
cprogramming-language9
refactoring9
c-language9
error-handling8
github-ci8
cicd8
githubaction-workflow8
cli7
command-line7
Programming languages (9)
Github contributions (5)
VOICEVOX/voicevox_core
Aug 2022 - Jan 2023
無料で使える中品質なテキスト読み上げソフトウェア、VOICEVOXのコア
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1265 reviews, 48 commits, 704 PRs in 5 months
Contributions summary:Ryo primarily worked on enhancing the core functionality of the VOICEVOX core library. Their contributions involved refactoring the code by introducing the OpenJtalk library as an argument and re-exporting it for broader use within the synthesis engine. They also focused on improving the build process with features like generating C headers. Additionally, they updated the codebase to align with coding standards. Finally they made modifications to support audio query input/output and fixed an issue related to GPU memory allocation during initialization.
voicevox
est31/cargo-udeps
Sep 2019 - Mar 2021
Find unused dependencies in Cargo.toml
Role in this project:Back-end Developer
Back-end DeveloperContributions:55 commits, 30 PRs, 3 pushes in 1 year 6 months
Contributions summary:Ryo primarily worked on refactoring and improving the `cargo-udeps` tool, which identifies unused dependencies in a Rust project's `Cargo.toml` file. Their contributions involved associating crate and library names with dependency names, grouping dependencies by workspace members, and removing the use of `Metadata`. Further enhancements included distinguishing build and development dependencies and the addition of an output format selection. The user also upgraded dependencies and migrated the project to Rust 2018.
cargo
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