Backend Architecture
API Gateway & Microservices
High-performance API layer handling 1M+ requests/day
Node.jsLaravelRabbitMQRedisPostgreSQLDockerNginx
The Problem
A fintech startup had a tightly coupled monolith that couldn't scale. API response times exceeded 2 seconds, and deployments caused 30+ minutes of downtime.
The Solution
Decomposed the monolith into microservices behind an API gateway with rate limiting, JWT authentication, request validation, and circuit breakers. Implemented async message queues for heavy operations.
The Outcome
API response times dropped to under 100ms (p95). Zero-downtime deployments. System handles 1.2M requests/day with auto-scaling.