Hi, I'm Istvan Biczyk.

Crown Clothing is an e-commerce web application that allows users to browse and purchase clothing items. The application is built using React JS, Redux, Firebase, and Stripe. Users can sign in with their Google account, add items to their cart, and make payments using Stripe. The application is fully responsive and provides a seamless user experience across all devices.

DjangoBnB is a full-stack Airbnb-style web application built with Next.js on the frontend and Django on the backend, designed to replicate real-world booking platform functionality. The application supports user authentication, property listings, dynamic availability, and a clean, responsive booking experience. The frontend is built with modern React patterns using Next.js for fast page loads and SEO-friendly rendering, while the backend exposes a RESTful API powered by Django to handle business logic, data persistence, and authentication. This project demonstrates my ability to design and integrate a decoupled frontend and backend architecture, manage API communication, and build production-style features such as authentication flows, data validation, and scalable data models.

RecipeShare is a full-stack social media web application that allows users to discover, share, and engage with recipes in a community-driven environment. Registered users can create and publish recipes, search and filter content, follow other users, vote on recipes, and participate in discussions through comments. The platform supports full user authentication and profile management, enabling users to build a presence within the community while discovering new culinary inspiration. The project focuses on delivering a responsive, user-friendly experience across devices and demonstrates the implementation of real-world social features such as user feeds, voting systems, follower relationships, and CRUD workflows backed by a REST API.

A feature-rich blogging platform demonstrating proficiency in full-stack development, database design, and RESTful API architecture. The application includes user authentication with session management, a sophisticated tagging system using many-to-many relationships, full-text search across posts, and a nested comment system. Key technical implementations include PostgreSQL database optimization with indexing, server-side rendering with Jinja2 templates, client-side interactivity with vanilla JavaScript, and responsive design following mobile-first principles. Security features include bcrypt password hashing, parameterized SQL queries to prevent injection, and CSRF protection.