Professional portfolio

Python Backend Developer
building web APIs, automation-ready systems, and mobile-integrated applications

I am Eduardo Da Silva Balbino, a Computer Science student focused on Python backend development, REST APIs, automation, and system integration. I build practical projects with authentication, CRUD operations, dashboards, filters, database integration, deployment workflows, and mobile apps connected to production backends.

View live application View GitHub View LinkedIn
4
Projects completed
Web + Mobile
Flask API integrated with Android app
Python
Backend, APIs, and automation focus

About Me

I am a Computer Science student focused on Python backend development, APIs, automation, and system integration. Through personal projects, I have been developing applications with real features such as authentication, CRUD operations, dashboards, filtering systems, pagination, recurring data logic, API endpoints, mobile integration, APK generation, and deployment workflows. I am currently looking for my first internship or junior opportunity where I can contribute, learn continuously, and grow in a professional development environment.

What I Deliver

Backend foundations with real structure

Applications built with authentication, protected routes, validation, REST endpoints, database integration, and a strong foundation for backend development.

Data-driven systems and APIs

Practical systems with CRUD operations, API consumption, filters, pagination, dashboards, mobile integration, and features designed around real user workflows.

Portfolio projects with real-world thinking

Projects developed to demonstrate business rules, usability, deployment, API integration, debugging, and problem-solving in realistic application scenarios.

Technologies

Python Flask SQLAlchemy PostgreSQL SQLite JavaScript TypeScript React Native Expo API REST EAS Build Chart.js HTML CSS Bootstrap Git GitHub Render
Featured project

People Management Web

A complete Flask web application for people management, built to demonstrate backend best practices, organized architecture, database integration, and user-focused functionality.

  • User authentication with login and logout
  • Full CRUD for creating, editing, and removing people
  • Name search and result pagination
  • SQLite in development and PostgreSQL in production
  • Modular structure with Blueprints and service layer
  • Deployment on Render
Authentication CRUD Pagination Blueprints Service Layer Render
View live application View source code
Latest full-stack + mobile project

Personal Finance Tracker

A personal finance ecosystem built with a Flask web application, REST API, production backend, and an Android mobile app developed with React Native and Expo. The project manages income, expenses, recurring transactions, financial goals, dashboard analytics, smart alerts, CSV export, and complete transaction management across web and mobile.

  • Flask web application with authentication, protected routes, demo access, and CRUD operations
  • REST API endpoints consumed by the mobile app: GET, POST, PUT, and DELETE transactions
  • React Native / Expo Android app integrated with the Flask backend running in production
  • Mobile CRUD: list, create, edit, and delete transactions directly from the app
  • Dashboard with income, expenses, balance, savings rate, goal progress, and smart financial alerts
  • Charts and visual summaries, including expenses by category and monthly evolution
  • Recurring monthly transactions, advanced filters, title search, pagination, and CSV export
  • Backend deployed on Render and Android APK generated/tested with EAS Build
Flask API REST SQLAlchemy SQLite PostgreSQL React Native Expo TypeScript EAS Build APK Android Chart.js Render
View web application View web/API source View mobile app source
Complementary project

To-Do List System

A Python project created to strengthen programming fundamentals, application structure, and data handling through a practical task management system.

  • Task creation and management
  • Application logic organization
  • Practical project focused on strengthening core fundamentals
Python Logic Structure Practical Project
View source code

Contact

I am open to internship opportunities and junior backend roles, especially in Python, backend development, APIs, automation, and system integration. I am currently looking for my first professional opportunity to apply my skills in real projects and continue growing as a developer.

Email: ed.s.balbino@gmail.com

LinkedIn: linkedin.com/in/eduardo-da-silva-balbino-1611b3401