ymnakatsu

Software Architect IT Engineer since 2012 Hyogo, Japan

Working primarily as a Software Architect. Focused on system architecture design, domain modeling, core foundation design, code reviews, and cloud infrastructure engineering & operations.

01Personal Projects

Entitia

Desktop & AI Modeling Tool

Tauri v2 / Rust

AI-agent collaborative UML modeling environment. Supports diagram rendering, high-resolution image export, and direct graph manipulation by external AI agents via Model Context Protocol (MCP).

Tauri v2 Rust TypeScript MCP

Orisei

Backend & Geospatial Platform

Backend Focus

Web platform combining geospatial positioning with content analysis. Handled the backend infrastructure, architecting payment flows via Stripe (Connect, Webhooks, subscriptions) and developing automated location-mapping features.

TypeScript Stripe AWS Bedrock AWS Location PostgreSQL

02Tech Stack

Languages

Java
TypeScript / JavaScript
Rust
Go
SQL

Backend & Architecture

Spring Boot
NestJS
Prisma
Workflow Engines & State Machine Architecture
GraalVM Native Image
Flyway
ArchUnit
OpenAPI

Data, Cloud & Tools

PostgreSQL
SQLServer
AWS
Docker

Desktop & Frontend

Tauri (v2)
Next.js
HTML / CSS / TypeScript
Tailwind CSS

Protocols & Integrations

Model Context Protocol (MCP)
Stripe (Connect / Webhooks)
LLM (AWS Bedrock Claude)
WebSocket (Tomcat NIO)