Software Developer | Python Backend Development | Java & Spring Boot
I'm a software developer based in the Kraków area, Poland, with commercial experience in backend development using Java and Spring Boot.
I'm currently expanding my Python backend skills by building practical projects focused on REST APIs, database integration, automated testing, and data analysis.
🌐 Portfolio · 💻 GitHub Repositories
Backend
- Python, FastAPI
- Java, Spring Boot, Hibernate, Spring Data JPA
- REST APIs
- Node.js, Express.js
Databases
- PostgreSQL
- SQLite
- Oracle Database
Testing & Tools
- pytest
- Git, GitHub
- Linux, Bash
- Docker and self-hosted applications
Frontend
- JavaScript, React
- HTML5, CSS3
A Python application for tracking expenses and understanding spending habits.
- FastAPI backend and SQLite database
- Expense management and categorization
- Monthly spending summaries and comparisons
- Interactive dashboard with spending insights
- Automated tests with pytest
Tech: Python · FastAPI · SQLite · pytest
A Python tool for analyzing GitHub repositories through the GitHub REST API.
- Retrieves repository information and statistics
- Analyzes programming languages and file types
- Identifies test files and categorizes project files
- Finds the largest files in a repository
Tech: Python · GitHub REST API · pytest
A self-hosted application for collecting and visualizing sensor data from ESP8266-based IoT devices.
- Backend API built with Spring Boot
- PostgreSQL database for sensor readings
- MQTT integration for transferring sensor data
- Home automation and monitoring integrations
Tech: Java · Spring Boot · PostgreSQL · MQTT · ESP8266
Certificates earned through freeCodeCamp:
- Scientific Computing with Python
- Relational Database
- JavaScript Algorithms and Data Structures
- Back End Development and APIs
- Data Visualization
- Responsive Web Design
- Front End Development Libraries
- 🌐 Portfolio: filibie.github.io/portfolio
- 💻 GitHub: @filibie
- 💼 LinkedIn: https://www.linkedin.com/in/fil-bie-xff/
Thanks for visiting my profile! Feel free to explore my projects and get in touch.




