Ryuichi Sato
Fraud Analyst at Mercari, inc.
Greater Tokyo Area Japan
Summary
👤
Senior🎓
Top SchoolRyuichi Sato is a fraud analyst and data scientist with 11 years of experience applying ML/DL and quantitative methods to credit risk, advertising, and fraud detection across five companies including Mercari and Mizuho–DL. He combines deep financial domain expertise—Monte Carlo tail-risk simulation and enterprise scoring—with practical engineering skills like web scraping with Selenium and building similarity search on Elasticsearch. A former consultant with over a decade advising financial institutions, he holds a Master’s in Physics from Tokyo Institute of Technology and has patented a parallel Monte Carlo processing method. Ryuichi also spins his curiosity into side projects and startups: he co-founded AI consulting ventures from an AI Quest collaboration and publishes automated horse-race forecasting visualizations that pipeline scraping to reporting. Known for turning complex stochastic models into production-ready systems, he focuses on business impact and ROI when prioritizing analytics and product decisions.
11 years of coding experience
16 years of employment as a software developer
Science and Engineering, Department of Physics (Particle Theory Laboratory), Science and Engineering, Department of Physics (Particle Theory Laboratory) at Tokyo Institute of Technology - Master Degree
Github Skills (2)
avisynth8
python5
Github contributions (5)
ryu-blacknd/FavsE-Classic
Sep 2016 - Jan 2020
Contributions:13 releases, 45 commits, 2 PRs in 3 years 4 months
pythonavisynth
ryu-blacknd/docker-php
May 2016 - Feb 2017
Contributions:69 pushes, 1 branch in 9 months
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