Keita Matsuura
Senior Web Engineer at Yahoo! JAPAN
Saitama Prefecture, Japan
Summary
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SeniorKeita Matsuura is a seasoned Senior Web Engineer with 11+ years building full-stack web applications and operating production systems at scale, currently at Yahoo! JAPAN. He is fluent across frontend and backend stacks—React, Node.js, PHP, JavaScript, SASS—and experienced with databases (MySQL, PostgreSQL, Oracle, NoSQL, SQL Server) and DevOps tooling including Docker, CI/CD, and AWS. At Skyscanner Japan he worked in a multicultural engineering team using English and delivered microservices, serverless components, and infrastructure as code; at Yahoo! he introduced end-to-end testing, blue/green deployments, and operational practices. Comfortable spanning architecture to monitoring, he blends hands-on coding with deployment and network operations knowledge (GSLB, load balancers, DNS). Keen on AWS, React and Node.js, he prefers modern, diverse teams with flexible workstyles and brings practical cross-functional experience that helps bridge development and production.
11 years of coding experience
6 years of employment as a software developer
Github Skills (38)
bayesian-statistics10
bayesian-data-analysis10
r-package10
translation10
modeling-tool10
r10
agent-based-modeling10
rstan10
stan10
bayesian-inference10
modeling10
statistical-models9
bayesian9
sundials9
eigen9
Programming languages (7)
Github contributions (5)
MatsuuraKentaro/Optimal_Adaptive_Allocation_in_a_Dose-Response_Study
Oct 2021 - Dec 2022
Contributions:8 commits, 6 pushes in 1 year 2 months
MatsuuraKentaro/RLoptimal
Jun 2024 - Oct 2025
R package: RLoptimal: Compute optimal adaptive allocation using deep reinforcement learning in phase II non-oncology dose-response studies
Contributions:4 releases, 3 reviews, 24 PRs in 1 year 3 months
deep-reinforcement-learningrr-package
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