Takuma Koge is a pragmatic software engineer with 11 years of experience spanning embedded systems, IoT backend infrastructure and DevOps, now based in Stockholm. He has led distributed teams and built scalable microservice platforms and CI/CD pipelines for IoT and fintech products, while also shipping embedded Linux/Android navigation software earlier in his career. Comfortable across the stack, he contributes to open-source projects like Redash and Frisby—working on both frontend and backend fixes as well as test automation—illustrating a habit of improving reliability and developer experience. Fluent in cloud-native tooling (AWS/GCP, Kubernetes, Terraform) and languages from C/C++ to Node.js and Go, he combines systems-level rigor with pragmatic product-focused delivery. A relocated engineer from Japan who has managed remote teams since 2019, he brings cross-cultural collaboration and a persistent interest in making developer workflows smoother.
10 years of coding experience
9 years of employment as a software developer
BS in Information Technology, Information Science, Computer Architecture / Computer System, BS in Information Technology, Information Science, Computer Architecture / Computer System at Hiroshima City University
Frisby is a REST API testing framework built on Jest that makes testing API endpoints easy, fast, and fun.
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:3 reviews, 40 commits, 25 PRs in 4 years 9 months
Contributions summary:Takuma focused on enhancing the testing framework by adding and improving test coverage for various HTTP methods, including DELETE, OPTIONS, and HEAD. They implemented new test cases with request bodies and ensured correct behavior for features such as comma-separated headers. Additionally, the user updated tests and documentation to align with framework updates and modern best practices. These changes improved the robustness and reliability of the API testing framework.
Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.
Role in this project:
Full-stack Developer
Contributions:5 reviews, 35 commits, 30 PRs in 1 year 9 months
Contributions summary:Takuma demonstrated a strong focus on both frontend and backend development, making contributions to multiple areas of the Redash project. They fixed backend issues related to user management and Google Sheets integration. The user also significantly contributed to frontend code, particularly around linting and UI component updates. Furthermore, they worked on test setup improvements, demonstrating an understanding of the entire application stack.
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