Designing and implementing the software that operated and controlled the computer cluster.Using Python 3.8, 3.9, 3.10, MQTT and AMQP(RabbitMQ), Redis, MongoDB.Designed and implemented management resources of data center.Using Python 3.8, 3.9, 3.10.Designed and implemented a Stock Management service.Using Ruby on Rails 6.0, Heroku, MySQL, Amazon ECS, CodeCommit, CodeBuild.Teacher of a city app school for university students.From 2014 to 2019, https://www4.city.kanazawa.lg.jp/11010/jyuku/Designed and implemented a E-Commerce Service site (B2B) with to manage shipping.Using Ruby on Rails 5.2, Heroku, PostgreSQL.Designed and implemented a mailing list management service.Using Ruby on Rails 5.1, Heroku, SendGrid and PostgreSQL.Implemented a service to manage aged care facilities.Using Spring Boot, Java8, IntelliJ and PostgreSQL.Designed and implemented a Hospital search for a life insurance company.Using WPF, C#, Oracle, Entity Framework and Visual Studio 2017 on Windows.Designed and implemented a REST API Server for SafeML.Using Ruby on Rails 5.0.x.Designed a development plan which manage and controled devices (Raspberry PI, MQTT, Network Camera and GPIO).Using Microsoft Azure and Express Route.Assisted intro ducting to use FBA (Fulfillment-by-amazon).Implemented a Scalable Infrastructure for Datacenter on Google Cloud Platform.Using Ruby 2.x, docker and Kubernetes on GCE/GKE.Designed and Implemented "Sake" Information Application on iOS/Android.Using Ruby on Rails + MySQL + AngularJS + Cordova on Sqale(PaaS).Designed and Implemented an Informational Application, ERP and CRM on iOS/Android.Using CakePHP + MySQL + AngularJS + Cordova on AWS(EC2).Implemented 3D Viewer on Windows.Using C++ 0x11 with C# (OpenGLES Application)

Developed and Managed Social Games and Services, E-Commerce sites.Developed and Managed tools for Social Games.Managed and created Infrastructures on AWS and IIJ.Using Java(Seasar2, Tomcat6), JavaScript(jQuery, enchant.js), PHP(EC-CUBE, CakePHP)JRuby(1.6),

Implemented and Designed an ISDB-T on Embedded Linux (porting BML browser).Using C++, ECMA-Script.

Designed and implemented Windows Applications of ISDB-T. Using MFC, C++ with boost and STL, winsock.Coworking in Taiwan.

Develop Windows Application packages of OCR. Using MFC, VB, VB5, VB6, C++ with boost library, COM, .NET, Install ShieldManage Team Network Infrastructure.Using Debian, samba, CVS.