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Event-Driven Architecture Implementation

Jun 2023 to Jan 2024

Google Pub/SubJavaSpring BootEvent-Driven ArchitectureMicroservicesMessage QueuesDead Letter QueuesGCP

Overview

Implemented event-driven architecture using Google Pub/Sub to eliminate system downtime issues. Created topic structure, subscription management, and message routing with dead letter queues. Connected multiple microservices through asynchronous communication. Eliminated monthly 3-hour incidents, achieved 99.99% message delivery, reduced response time by 60%, and enabled 10x higher concurrent transaction processing.

Key Features

  • Google Pub/Sub topic and subscription management
  • Dead letter queue implementation
  • Asynchronous microservices communication
  • Eliminated monthly 3-hour system incidents
  • 99.99% message delivery reliability
  • 60% response time reduction
  • 10x higher concurrent transaction processing

Challenges

Designing reliable message routing with proper error handling and ensuring zero message loss during the transition from synchronous to asynchronous architecture.

What I Learned

Mastered event-driven architecture patterns, Google Pub/Sub implementation, asynchronous communication patterns, and building resilient distributed systems.