Tatsuro Shibamura
CEO at ゼンアーキテクツ
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolTatsuro Shibamura is a cloud architect and CEO with 13 years of engineering experience, specializing in Microsoft Azure PaaS and serverless systems and currently leading Polymind from Tokyo. A Microsoft MVP for Azure and former freelance programmer turned Distinguished Engineer, he designs cloud-native, maintainable architectures that simplify complex AI and LLM applications. Tatsuro is an active open-source contributor with notable work on terraform-provider-azurerm and Azure Functions Durable Extension, and has fixed platform and ARM64 build issues in projects like vcpkg. He combines hands-on backend and DevOps experience—automating ACME certificate issuance and improving storage and function app features—with a clear philosophy: make complexity understandable and operable.
13 years of coding experience
10 years of employment as a software developer
Bachelor, Information Technology, Bachelor, Information Technology at Wakayama University
Github Skills (48)
c-language10
lib10
azure-keyvault10
windows10
net10
azure-functions10
dotnet10
build-system10
cloud-infrastructure10
cmake10
microsoft-azure10
c1110
acme10
terraform10
azure-resource-manager10
Programming languages (22)
Github contributions (5)
shibayan/keyvault-acmebot
Sep 2018 - Jan 2023
Automated ACME SSL/TLS certificates issuer for Azure Key Vault (App Service / Container Apps / App Gateway / Front Door / CDN / others)
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:137 releases, 39 reviews, 314 commits in 4 years 4 months
Contributions summary:Tatsuro's commits primarily focused on developing and maintaining the infrastructure for issuing automated ACME SSL/TLS certificates for Azure Key Vault. They added, fixed, and improved code related to certificate issuance, DNS record management, and general project functionality. These changes included adjustments to DNS validation, certificate renewal processes, and integration of features like custom DNS providers. Furthermore, the user demonstrated DevOps skills by modifying the project's build and target frameworks.
vaultissuertls-certificatesdoorazure-cdn
Azure/azure-functions-durable-extension
Feb 2019 - Feb 2021
Durable Task Framework extension for Azure Functions
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 commits, 8 PRs, 51 comments in 1 year 11 months
Contributions summary:Tatsuro primarily focused on enhancing the functionality and stability of the Azure Functions Durable Extension. Their contributions include adding features like custom lifecycle notification helpers and type handling for exception serialization, which likely improved orchestration tracking and error handling. The user also implemented initial entity proxy functionality, enabling more streamlined interaction with durable entities. They further addressed several bugs and improved the robustness of the project by resolving issues related to HTTP response handling and default factory registrations.
durableazure-functionsazure
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