VaultsPay is a complete fintech ecosystem built using microservices architecture, delivering secure financial services including digital payments, card management, and banking solutions. The platform handles millions of users and transactions with enterprise-grade security and performance.
🏗️ Architecture & Technology Stack
Backend: Java Spring Boot microservices
Frontend: React.js with modern UI/UX
Database: PostgreSQL for transaction data
Message Queue: Apache Kafka for inter-service communication
Caching: Redis for high-performance data access
Cloud: AWS services for scalability and security
💳 Core Financial Services
Payment Solutions
Send Money: Instant peer-to-peer transfers with real-time processing
Card Top-up: Seamless wallet and card balance management
Kiosk Deposits: Physical cash deposit integration for unbanked users
Multi-channel Transactions: Support for various payment methods
Card Management System
Virtual Cards: Instant digital card issuance for online transactions
Physical Cards: Complete lifecycle management from ordering to delivery
Card Controls: Real-time spending limits, merchant restrictions, and security settings
Global Acceptance: International transaction support with multi-currency handling
Card Transactions
ATM Withdrawals: Secure cash withdrawal processing with real-time authorization
POS Purchases: In-store payment processing with instant merchant settlement
E-commerce Integration: Online payment gateway with fraud detection
Cross-border Payments: International transfer capabilities with competitive rates
🔧 Key Microservices Implemented
Banking Engine
Core transaction processing system handling all financial operations
Real-time balance updates and transaction validation
Automated reconciliation and settlement processes
Compliance with banking regulations and security standards
Notification Service
Scale: Efficiently processes millions of daily notifications
Multi-channel: SMS, email, and push notification delivery
Permission System: Granular access control for different platform features
Performance & Security Features
High Availability: 99.99% uptime with load balancing across microservices
Data Encryption: End-to-end encryption for all sensitive financial data
Fraud Detection: Real-time transaction monitoring and risk assessment
Audit Trail: Comprehensive logging for regulatory compliance
API Rate Limiting: Protection against abuse and ensuring fair usage
Compliance & Security
PCI DSS Level 1 compliance for card processing
SOC 2 Type II security controls
Anti-Money Laundering (AML) integration
Know Your Customer (KYC) verification workflows
Real-time fraud monitoring and prevention
This fintech platform demonstrates expertise in building enterprise-grade financial solutions with modern architecture, ensuring scalability, security, and regulatory compliance while delivering exceptional user experience across all financial services.
Like this project
Posted Aug 2, 2025
Developed VaultsPay, a secure fintech platform with microservices architecture.