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  • Software Engineer at @microsoft | Founder & CEO at HexaCloud

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Watashi00/README.md

👋 Hello, I’m Rodrigo (Watashi00)

I am a Back-end Developer focused on Java, Spring Boot, SQL/NoSQL, with a strong interest in system architecture, scalability, distributed systems, and performance.
Passionate about building complete, end-to-end solutions, from low-level details to high-level design decisions.


Professional Overview

  • Back-end focused engineer with an architecture-first mindset
  • Experience designing APIs, services, and data-driven systems
  • Comfortable working across multiple languages and runtimes, not limited to a single stack
  • Strong concern for maintainability, performance, and long-term evolution of systems

🛠 Technologies & Tools

Programming Languages

Java C Assembly JavaScript TypeScript


Frameworks & Runtimes

Spring Boot Node.js React


Web Technologies

HTML5 CSS3


Databases & Storage

PostgreSQL MySQL H2 Apache Cassandra


Messaging, Caching & Async

Redis Apache Kafka RabbitMQ


Dev Tools

Git GitHub Docker


Architecture & Back-end Design

  • Layered Architecture (Controller / Service / Repository)
  • Clean Code & SOLID principles
  • DTOs, validation, and mapping strategies
  • Global exception handling
  • API versioning strategies
  • Authentication & authorization (JWT, role-based access)
  • OpenAPI / Swagger documentation

Cloud, DevOps & Infrastructure

  • Docker & Docker Compose
  • Environment-based configuration (dev / test / prod)
  • Linux-based development environment
  • CI/CD fundamentals with GitHub Actions
  • Cloud-native application principles

Performance & Scalability

  • Application-level performance tuning
  • Memory and CPU awareness
  • Efficient data access patterns
  • Low-level programming concepts (C & Assembly)
  • Scalability planning and bottleneck identification

Testing & Code Quality

  • Unit testing (JUnit, Mockito)
  • Integration testing for REST APIs
  • Focus on testable business logic
  • Refactoring-oriented mindset
  • Long-term maintainability focus

My Projects

Featured projects will appear here.
Currently under maintenance and preparation.

🛠 Project Alpha

Status: Ocious Focus: Stack:

🛠 Project Beta

Status: Ocious Focus: Stack:

🛠 Project Gamma

Status: Ocious Focus: Stack:


📊 GitHub Statistics

Watashi00 GitHub Stats

Watashi00 Top Languages

GitHub Streak


📫 Contact


💬 Fun Fact

Always looking to learn new technologies, explore different paradigms, and continuously improve how systems are designed, built, and scaled.

Popular repositories Loading

  1. Watashi00 Watashi00 Public

  2. desafios-cluster-ti desafios-cluster-ti Public

    Forked from LeticiaLemeHub/desafios-cluster-ti

    Desafios do Cluster — Treine sua lógica de programação! Repositório criado com o objetivo de ajudar estudantes a praticar lógica e fundamentos de programação de forma leve e divertida. Todos os des…