CaixaBank Java Hackathon

A comprehensive banking system backend developed for CaixaBank Tech's hackathon challenge. This project implements a robust financial platform that manages stock market operations, automated trading, and secure banking transactions.

Key Features

Core Banking Operations

• Secure user authentication and authorization using JWT
• Account management with PIN protection
• Real-time transaction processing
• Comprehensive transaction history tracking
• Fund transfers between accounts

Investment Platform

• Real-time market price monitoring
• Asset purchase and sale operations
• Portfolio management
• Automated trading bot implementation
• Investment performance tracking
• Net worth calculations

Security Implementation

• Password encryption using BCrypt
• Two-factor authentication with OTP
• PIN-protected transactions
• Role-based access control
• Secure password reset mechanism

Advanced Features

• Automated trading bot with market analysis
• Subscription system for periodic payments
• Real-time market data integration
• Email notifications for transactions
• Performance analytics and reporting

Technical Stack

• Backend Framework: Spring Boot
• Security: Spring Security, JWT
• Database: PostgreSQL
• Containerization: Docker
• Build Tool: Maven
• API Documentation: Swagger
• Testing: JUnit, Mockito

Technical Challenges

• Implementation of real-time market data processing
• Development of secure transaction systems
• Creation of automated trading algorithms
• Integration of email notification services
• Design of scalable subscription systems

Project Impact

This project demonstrates the ability to:

• Build secure and scalable financial systems
• Implement complex business logic for trading operations
• Handle real-time data processing
• Develop automated financial services
• Create robust error handling systems