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MicroServices-Bank

Built a production-grade reference implementation of a distributed banking system to demonstrate the full microservices ecosystem end-to-end. Applied hands-on expertise in Kafka, Kubernetes, Helm, and OAuth2 to create a comprehensive platform showcasing modern cloud-native architecture patterns.

Java 17Spring BootSpring CloudApache KafkaKubernetesHelmSpring Security 6JWTOAuth2DockerPrometheusGrafanaZipkin
// Impact: Full end-to-end microservices reference implementation
{ CHALLENGES }
  • →Architecting service discovery, centralized config, and intelligent API routing
  • →Implementing resilient patterns with circuit breaker, retry, and rate limiter (Resilience4j)
  • →Setting up asynchronous event-driven inter-service communication
  • →Securing APIs end-to-end with role-based access control at the gateway
{ FEATURES }
  • ✓Service discovery with Eureka and centralized config via Spring Cloud Config + Bus
  • ✓API routing via Spring Cloud Gateway with Resilience4j patterns
  • ✓Asynchronous event-driven messaging using Apache Kafka
  • ✓Full observability: distributed tracing (Micrometer + Zipkin), metrics (Prometheus + Grafana)
  • ✓Containerized with Docker, orchestrated on Kubernetes with Helm charts
  • ✓End-to-end API security with Spring Security 6, JWT, and OAuth2
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