Shusaku Yusa
Software Engineer at Mercari US
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolShusaku Yusa is a Tokyo-based software engineer with a PhD in nuclear physics and a decade of experience spanning research, data science, and full-stack engineering. He has driven backend architecture, CI/CD, automated testing, and performance tuning for healthtech and marketplace platforms, and currently contributes to Mercari US while freelancing. Comfortable from infrastructure-as-code to frontend work, he combines rigorous scientific thinking with pragmatic software design to evolve products that keep delivering business value. Notably, his background in physics and image-processing research has led to collaborative R&D and patents, reflecting an ability to bridge deep technical research and production systems.
10 years of coding experience
8 years of employment as a software developer
Doctor of Philosophy - PhD, Nuclear Physics, Doctor of Philosophy - PhD, Nuclear Physics at Tohoku University
Japanese, English
Github Skills (25)
lifecycle9
python8
mlflow8
ai8
dvc8
model-management8
machine-learning8
incremental-learning8
apache-spark8
php5
ml5
multi-page5
roadrunner5
protobuf4
grpc3
Programming languages (4)
Github contributions (5)
shu-yusa/phd-thesis
Sep 2017 - May 2022
Contributions:5 pushes, 1 branch in 4 years 9 months
shu-yusa/ccfull-qel
Oct 2015 - Jul 2018
Contributions:13 commits, 8 pushes, 1 branch in 2 years 9 months
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