DEV Community: Jose Filipe Oliveira Pereira

Project Update | Backend Technical Progress 🚀

Jose Filipe Oliveira Pereira — Wed, 17 Dec 2025 22:00:38 +0000

Continuing the development of my digital menu system for restaurants, today I focused entirely on the backend technical foundation.

I implemented the full authentication flow, including:

• User registration
• Login
• JWT-based authentication

Additionally, I deployed the database in a Docker container, already integrated with the application and running correctly.

To ensure a more robust backend, I also implemented:
• Custom exceptions (e.g., LoginException)
• Global exception handler, centralizing and standardizing API error responses

This way, errors are returned clearly and consistently, making it easier for the frontend to consume and for the system to be maintained.

I tested all endpoints using Insomnia:
• The login endpoint correctly returns the user’s name and the JWT token
• The authentication flow and error handling are working as expected

🛠️ Stack involved in this progress:
• Java + Spring Boot
• PostgreSQL
• Docker
• JWT
• Global exception handling
• API testing with Insomnia

👉 I will continue documenting every stage of the project, always focusing on best practices and continuous learning.

Java #SpringBoot #Docker #JWT #PostgreSQL #BackendDevelopment #API #ExceptionHandling #PersonalProject #LearningByDoing

Building a Digital Menu System for Restaurants – Personal Project

Jose Filipe Oliveira Pereira — Tue, 16 Dec 2025 02:01:43 +0000

After a pause, I returned to a personal project that I consider the most important in my portfolio: a digital menu system for restaurants.

The project had been on hold while I reorganized my studies and reconsidered technical priorities. During this time, I implemented backend login and registration, as well as the login screen on the frontend.

Now, I decided to rewrite the backend from scratch using Java with Spring Boot, focusing on a primary language before moving on to others.

To resume the project with more clarity, I structured the development process as follows:
• Organizing the Trello board with backlog, user stories, and sprints
• Creating prototypes of the screens before coding
• Defining architecture, responsibilities, and technical priorities

The goal remains the same: building a complete digital menu and ordering system, with best practices, professional architecture, and quality code, as if it were being developed inside a real company.

🛠️ Project stack and practices:
• Backend: Java + Spring Boot
• Mobile Frontend: React Native + TypeScript
• Database: PostgreSQL with migrations
• JWT Authentication
• Layered architecture, testing, documentation, and project organization
• Planning with Trello and prototyping before development

My aim is for this project to be a strong portfolio piece, helping me grow technically with every decision and document the entire learning process.

👉 If you’re a student, beginner, or interested in the project and would like to exchange ideas, collaborate, or follow the development, feel free to reach out. I can share the prototype, planning, and next steps.

Java #SpringBoot #ReactNative #TypeScript #PostgreSQL #JWT #DevCommunity #PersonalProject #PortfolioProject #SoftwareDevelopment #CleanCode #Architecture #MobileDevelopment #Programming #LearningByDoing

# I'm Building a Professional Restaurant Menu System for My Portfolio

Jose Filipe Oliveira Pereira — Tue, 03 Jun 2025 15:17:16 +0000

Hello Dev Community! 👋

I'm excited to share that I've started working on a new personal project: a professional-grade digital restaurant menu system, designed as if it were being developed in a real-world company environment.

🚧 Goals and Motivation

Build a complete mobile app for digital menus and order handling
Apply industry-level best practices in architecture, documentation, testing and maintainability
Use this as a centerpiece for my developer portfolio to apply for international opportunities

🧰 Stack and Key Concepts

Backend: Kotlin + Spring Boot
Database: PostgreSQL with Flyway migrations
Frontend: React Native + TypeScript
Others:
- Dockerized backend
- CI/CD pipeline
- Global error handling
- Caching layer
- Monitoring & observability
- Email notifications

✅ First Milestones

✅ Defined the system's Entity-Relationship model
✅ Started implementing PostgreSQL migrations
⏳ Next: Design the backend architecture and authentication flow

I'll be sharing more updates soon — including challenges, architecture decisions and how I’m applying clean code principles along the way.

If you're interested in mobile systems, restaurant tech, or just want to connect, feel free to reach out or follow the journey! 🚀

kotlin #springboot #reactnative #typescript #postgresql #softwaredevelopment #portfolio

Hello DEV Community! I’m José Filipe – Aspiring Backend Developer 🚀

Jose Filipe Oliveira Pereira — Sat, 31 May 2025 19:08:44 +0000

Hi everyone! 👋

My name is José Filipe Oliveira Pereira, and I’m a student of Internet Systems from Brazil. I’m passionate about building software and currently focused on backend development, especially with Java and Spring Boot.

I’m also learning React and open to opportunities in frontend or fullstack development as well. I’ve been building a professional project using Java (Spring Boot) and Electron, including features like reports, client/service management, and database integration — and I’ve been loving the process!

🔎 I’m actively looking for a remote internship or junior role, where I can grow, collaborate, and contribute.

💡 I’m proactive, a fast learner, and enjoy working in teams. I'm always curious and love to explore new technologies like Python, JavaScript, and databases.

Let’s connect! You can find me on:

GitHub: github.com/SeuUsuario
LinkedIn: linkedin.com/in/SeuPerfil

Thanks for reading! Excited to be part of this amazing community 🙌

beginners #java #springboot #career #react #dev