Banking Microservices Platform

🏦 Banking Microservices Platform

Cloud-Native, Scalable & Event-Driven System

This project is a modern banking platform built using a microservices architecture with Spring Boot and Spring Cloud. It separates core financial operations into independent services such as authentication, account management, transactions, notifications, auditing, and loans. All requests are handled through a centralized API Gateway, ensuring secure access using JWT and clean routing across services.

🧩 Architecture Overview

The system follows a fully distributed microservices design, where each service is independently deployable and responsible for a single domain. Service discovery is handled via Eureka, allowing dynamic communication without hardcoded endpoints.

🔐 Security & API Management

Authentication is implemented using JWT-based security, ensuring stateless and secure communication. The API Gateway acts as the single entry point, validating tokens and routing requests to downstream services.

⚡ Event-Driven Processing

The platform uses Apache Kafka for asynchronous communication. Critical operations like transactions trigger events that are consumed by notification and audit services, enabling loose coupling and scalability.

🛠 Core Functional Capabilities

• User authentication and authorization

• Bank account creation and management

• Deposit, withdrawal, and fund transfers

• Loan management and processing

• Real-time notifications and audit logging

📊 Observability & Resilience

The system includes Resilience4j circuit breakers to prevent cascading failures, along with distributed tracing (Zipkin) and metrics monitoring (Prometheus) for full system visibility and reliability.

🚀 Technology Stack

• Java 21, Spring Boot, Spring Cloud

• Apache Kafka, PostgreSQL

• Netflix Eureka, Spring Cloud Gateway

• Resilience4j, Zipkin, Prometheus

• Docker for infrastructure setup