Raphael Yoshiga
Founder at Koritsu AI
Stony Stratford, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolRaphael Yoshiga is a founder and engineering leader with a decade of experience building cloud-native, high-throughput APIs and operational tooling for fintech, e‑commerce, and medtech. As founder of Koritsu AI he focuses on engineering-grade FinOps for teams spending £10k+/month, drawing on hands-on Azure, Kubernetes and cost-optimisation experience initiated while instituting cost reviews at ATG and Villa Plus. He has led teams as CEO of FCamara UK and as Lead Engineer at NewDay, translating business requirements into secure, scalable APIs and production-ready CI/CD pipelines. His background includes acting as CTO for SaaS deliveries, migrating legacy systems to microservices, and running performance-sensitive systems processing thousands of messages per second. Raphael blends technical depth in C#, Terraform, Octopus/Azure DevOps and practical leadership—often coaching teams into DevOps and TDD/ATDD practices—to reduce risk and improve delivery cadence. He is based in Stony Stratford and brings a pragmatic, metrics-driven approach to balancing reliability, performance and cloud spend.
10 years of coding experience
12 years of employment as a software developer
Technical Course IT For the Web, Technical Course IT For the Web at ETEC Vila MadalenaXACS101 - 019 Software Security Foundations (Online), XACS101 - 019 Software Security Foundations (Online) at Stanford Career Education
English, Portuguese
Stackoverflow
107reputation
44kreached
6answers
3questions
Github Skills (22)
azure-pipelines10
cicd9
windows9
azure-devops9
azure9
datetime-format6
tfs6
azure-api-management6
crash6
aspnet-web-api6
git6
azure-cosmos-db4
sdk3
dotnet3
cosmos3
Programming languages (2)
Github contributions (5)
RaphaelYoshiga/HotChocolateDemo
Nov 2020 - Mar 2021
Contributions:11 commits, 10 pushes, 1 branch in 3 months
RaphaelYoshiga/GraphStitchingDemo
Nov 2020 - Nov 2020
Contributions:12 commits, 11 pushes, 1 branch in 4 days
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