Shuzaburo Tobimatsu

Currently working as a software engineer at IBM Japan. Educated in the department of information and computer science at Keio University.

Interests

Working as a full-stack client engineer. My major contributions to the completed projects are following:

Proof of concept (PoC) for international data exchange for a major car manufacturer:
- Evaluated proprietary software for data protection on EKS.
- Designed the system architecture for the PoC.
- Managed cloud resources on AWS.
System upgrade for a major credit card company using OpenShift:
- Replaced sections of the existing system with OpenShift-based applications.
- Designed and developed operational components using the Spring Framework.
  designed the monitoring standard, defined the alerts.
- Introduced Kustomize as the templating engine for OpenShift.
- Led a team of three during the end-to-end testing phase.
New business Launch for a major car inspection company:
- Designed the Relational Database schema.
- Designed and developed an image virus scanning subsystem using Node.js.
- Managed cloud resources with Terraform on IBM Cloud.
  Resulted in the successful provision of the production environment within one week by leveraging the templated configuration.
PoC for a horizontally scalable tech-stack for a major transport company:
- Designed and developed segments of the system.
  Improved a naive initialisation process, shortening the 99th percentile response time from 100s ms to 10 ms.
- Conducted performance tests.

Worked mainly as a web application engineer, experienced both in back-end development and front-end development.

Completely re-designed and re-implemented a paid iOS app (providing learning content) with Objective-C.
Developed and improved a web service providing similar content to the app above. Engaged both in front-end. with JavaScript and in back-end with PHP.
Developed a rhythm game with Cocos-2dx (C++).