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rgiovann/README.md

Giovanni Leopoldo Rozza

Backend Developer | DevOps

Welcome to my GitHub!

Here you'll find my main projects, some developed independently, others as part of bootcamps and courses where I added my own touch.

I'm currently focused on mastering the Java/Spring ecosystem for backend development. I also have basic experience with Angular/TypeScript, and a solid background in engineering, embedded systems, and technical education, with both national and international experience.

At the moment (completion in 2025), I'm enrolled in:

  • Entra21 – Java Track
  • Postgraduate Program in Java Development (UTFPR – EAD)
  • +Devs2Blu – DevOps Specialization Track

My current learning goals include secure web application development using Spring Boot, system observability, DevOps practices, and clean architecture principles (SOLID, KISS, DRY).

Background Highlights

  • Degrees in Electrical Engineering and Production Engineering
  • Professional experience at Siemens, Nortel Networks, TIM Brasil
  • International collaboration in Germany adapting embedded software to Brazilian standards
  • Technical and higher education teaching (UFPR, Bagozzi, SENAI-SC)
  • Currently pursuing specialization in Java and Spring Boot (UTFPR + Entra21)

Current Focus

  • Java EE, Spring Boot, JPA/Hibernate
  • REST APIs, OAuth2, Docker
  • Angular (front-end integration)
  • Software design and best practices

📫 Let’s Connect
Feel free to reach out on LinkedIn if you'd like to connect, exchange ideas, or know more about my journey!


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  1. gerador_series_temporais_arima gerador_series_temporais_arima Public

    A Java application using a Swing GUI generates various types of ARMA time series models, as described in the book Time Series Analysis, Forecasting and Control by Box and Jenkins.

    Java 1

  2. rachid-entre-amigos rachid-entre-amigos Public

    This Java program calculates how much each person should pay or receive in group expenses when payments are made by different people. The goal is to fairly split the total cost among all participan…

    Java

  3. ds-catalog ds-catalog Public

    A Spring Security showcase project featuring three different authentication approaches: a) Legacy Spring Boot 2.x b) Spring Boot 3.x with grant_type=password c) Spring Boot 3.x with PKCE and Keyclo…

    Java 1

  4. pratt_parser pratt_parser Public

    A Java implementation of a Pratt parser for parsing mathematical expressions with proper operator precedence and associativity.

    Java

  5. ls-cointegration ls-cointegration Public

    Implements a quantitative finance pipeline designed to identify cointegrated asset pairs for Long-Short trading strategies on the Brazilian stock exchange (B3)

    Python

  6. extrator-codigo-java extrator-codigo-java Public

    A Java tool that extracts and normalizes source code in Java for AI processing or analysis.

    Java