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MatheusIshiyama/README.md

Hi, I'm Matheus Ishiyama 👋

Full Stack Developer · Backend-Driven · Open to Relocation in Europe 🇪🇺 (Preferably Poland 🇵🇱)

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🧑‍💻 About Me

👨‍💻 I'm a Full Stack Developer with strong backend skills, passionate about building performant web applications and real-time systems.

🌍 Currently living in Japan, but actively looking for roles in Europe, with a strong preference for relocation to Poland.

  • 🔧 Specialized in Node.js, TypeScript, PostgreSQL, Redis, WebSockets
  • 🧱 Comfortable with scalable architecture & microservices
  • 🎮 I also enjoy game server architecture and creative web apps
  • 🌐 Language Proficiency: 🇵🇱 Learning Polish daily · 🇺🇸 Fluent in English · 🇧🇷 Native Portuguese speaker

🛠️ Tech Stack

💡 Languages & Runtime

TypeScript JavaScript Node.js

🏗️ Backend

Express Socket.IO Redis PostgreSQL MongoDB Prisma TypeORM Supabase

🧰 Tools & DevOps

Docker GitHub Actions ESLint Vercel

🎨 Frontend

React Next.js Tailwind CSS Sass


🚀 Highlight Projects

Project Description Tech Stack
Chat App Backend Real-time backend with user system, friends & messaging via WebSocket Node.js · Express · MongoDB · WebSocket
Chat App Frontend Modern UI for chat using only Sass and Socket.IO React · Sass · Socket.IO
Node.js Boilerplate Scalable starter template for backend apps TypeScript · TypeORM · ESLint · Docker

🌟 Highlights

  • 🌐 Designed and deployed scalable APIs with TypeORM and Prisma in multiple projects
  • 🔐 Integrated secure token-based auth flows (JWT) with refresh strategies in Express apps
  • 🧪 Wrote testable code with Jest and used GitHub Actions for continuous integration pipelines
  • 💬 Built a real-time chat application with Socket.IO and MongoDB
  • 🔄 Built internal tools leveraging Redis pub/sub patterns and background jobs

I’m actively looking for Full Stack or Backend roles in Europe, especially open to relocation to Poland.

Reach out via email or LinkedIn — let’s build something great!

Pinned Loading

  1. youtube-download-api youtube-download-api Public

    API to download mp3 and mp4 files from Youtube videos

    JavaScript 20 23

  2. jenkins-sonarqube-nodejs jenkins-sonarqube-nodejs Public

    A complete step-by-step guide to integrate Jenkins and SonarQube using Docker Compose for local CI and code quality analysis on Node.js projects. Ideal for developers learning DevOps and static cod…

    9 4

  3. ragnarok-database-api ragnarok-database-api Public

    API to get monster's data from Ragnarok Online game.

    JavaScript 5

  4. chat-app-backend chat-app-backend Public

    Backend for a real-time chat application built with Node.js, Express, Socket.IO, and MongoDB. Handles authentication, messaging, and friend management for the client application.

    JavaScript 2 1

  5. chat-app-frontend chat-app-frontend Public

    Frontend interface for a real-time chat application using React, Socket.IO, and Next.js. Features authentication, friend requests, and live messaging. Built with a custom Figma UI and powered by a …

    JavaScript