From 0 to Production in 48 Hours: Architecting SmartPager

Short summary

A team built SmartPager, a production-grade incident management system, in 48 hours using microservices (Spring Boot, PostgreSQL, React). They prioritized low-latency alerting with optimized event listeners instead of Kafka, achieving sub-second alert latency under 100+ concurrent incidents. The article emphasizes architecting system resilience from the start, not adding it later.

• •Built production microservices incident management system in 48 hours using Spring Boot, PostgreSQL, React behind Nginx
• •Chose event-driven architecture with optimized PostgreSQL over Kafka to achieve sub-second alert latency
• •Demonstrated architectural resilience under load—system handled 100+ concurrent incidents without degradation

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