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Software Engineer | DevOps | Cloud | Generative AI | Methodologies
πŸ’­
Software Engineer | DevOps | Cloud | Generative AI | Methodologies

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KleberVales/README.md

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πŸ‘¨β€πŸ’» About Me


πŸ‘‹ Hello, resume, I am a software engineer with over 7 years of experience building systems that follow good programming practices. I hold a postgraduate degree in software development, along with courses in various areas of technology and certifications. I have worked on projects involving data collection, automation, and embedded devices. I am always striving to be my best, improve my skills, and contribute to building good things.

Welcome to my programming portfolio. Feel free to take a look at my projects.

πŸŽ“ Bachelor's Degree in Computer Science ⏩ πŸŽ“ MBA in Web Software Development

πŸ… πŸ… πŸ…
 OCA – Java SE 7 Programmer    MTA – Software Development Fundamentals Scrum Fundamentals Certified (SFCβ„’)  
πŸ… πŸ… πŸ…
 OCI 2025 – DevOps Professional  OCI 2025 – Generative AI Professional    Oracle Agentic AI Foundations Associate
πŸ…
 OCI AI Foundations Associate    



πŸ› οΈ Portfolio Highlights




πŸ™οΈ BOOKSTORE MANAGER

Enterprise Book Inventory & Search System

A robust Java-based bookstore application designed to manage book inventory and provide fast, intuitive title searches. Built with a solid object-oriented architecture and relational database support.

β€’ πŸ“š Complete book inventory management (CRUD)
β€’ πŸ”Ž Fast search by title and keywords
β€’ πŸ—„οΈ Persistent data storage with MySQL & Hibernate
β€’ 🧱 Object-Oriented design with clean domain modeling
β€’ πŸ–₯️ Desktop interface built with Java Swing
β€’ 🌐 Web technologies integration (HTML, CSS, JavaScript)
β€’ πŸ” Reliable relational database structure

Java Hibernate Swing MySQL


πŸ—οΈ WAREHOUSE CLIMATE MANAGER

Enterprise Temperature & Humidity Control System

A robust Java-based warehouse monitoring application designed to track temperature and humidity in real time and automatically control ventilation systems, tailored for logistics environments such as the Port of Santos.

β€’ 🌑️ Real-time temperature and humidity monitoring (CRUD)
β€’ πŸŒ€ Automatic activation of ventilation systems based on sensor
β€’ πŸ“Š Historical data logging for climate analysis and auditing
β€’ πŸ—„οΈ Persistent data storage with PostgreSQL & Hibernate (JPA)
β€’ 🧱 Object-Oriented design with clean and modular domain
β€’ πŸ–₯️ Desktop interface built with JavaFX for operators
β€’ βš™οΈ Configurable climate thresholds (min/max)

Java Spring Boot JavaFX PostgreSQL


πŸ›’ E-Commerce Platform

Scalable E-Commerce Platform with Java & Spring

A robust and scalable e-commerce backend application built with Java & Spring Boot, designed to handle core online shopping operations with clean architecture, performance, and maintainability in mind.

β€’ 🧾 Complete shopping cart and order management
β€’ πŸ“¦ Product and inventory control
β€’ πŸ‘€ User and customer domain handling
β€’ πŸ”„ Transactional operations with Spring Data JPA
β€’ πŸ—„οΈ Persistent data storage using PostgreSQL
β€’ 🧱 Clean architecture with layered design
β€’ βš™οΈ RESTful APIs following best practices

REST API Docker Java Maven

πŸ’° FINANCIAL CONTROL SYSTEM

Enterprise Personal Finance Management Application

A robust Java-based financial control application designed to manage personal or small business finances, enabling precise tracking of income and expenses, detailed reporting, and efficient data navigation through pagination and sorting

β€’ πŸ’Έ Expense and income registration (CRUD)
β€’ πŸ“… Financial reports with period-based filters
β€’ πŸ“Š Paginated and sortable listings for expenses and revenues
β€’ πŸ—„οΈ Persistent data storage using PostgreSQL & Hibernate (JPA)
β€’ 🧱 Object-Oriented design with clean and modular domain
β€’ πŸ” Business rules and validations applied at the service layer
β€’ βš™οΈ Configurable financial categories and report parameters


Java Spring Boot PostgreSQL Gradle Git


πŸ—οΈ Software Engineering Stack


πŸ”„ DevOps & CI/CD

GitHub Actions Terraform Jenkins Ansible Helm Prometheus Grafana

πŸ’» Languages

Java JavaScript Kotlin Python

🧩 Frameworks

Spring Boot Hibernate JavaFX JUnit Mockito React

πŸ›’οΈ Databases

MySQL PostgreSQL MongoDB SQLite

πŸ“‘ Messaging and Communication

Apache Kafka RESTful APIs AWS SDK for Java

πŸ”§ Tools

Docker Kubernetes Gradle Postman Git GitHub

🎨 Design Patterns

Dependency Injection Singleton Pattern Factory Method Pattern Observer Pattern Repository Pattern

πŸ“‹ Project Management

PMBOK (PMI) Scrum Framework




πŸ“š Courses and Improvements

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πŸ† HackerRank Profile Trophy

HackerRank Badges HackerRank Logo




πŸ“ˆ GitHub Contribution Graph

GitHub Activity Graph




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    HTML 10

  2. nutrition-daily nutrition-daily Public

    Java 3

  3. smart-sales-store smart-sales-store Public

    HTML

  4. home-data-platform home-data-platform Public

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