Technical Guide2026-05-1317 min Read
Production LLM Application Architecture Patterns
Scalable, reliable architecture patterns for building LLM-powered applications with caching, queuing, and observability.
ArchitectureScalabilityDesign PatternsProduction
Core Architecture
Stateless API layer + Redis cache + LLM gateway + Provider APIs + PostgreSQL for persistence.
Caching Layer
Queue-Based Processing
Use BullMQ or SQS for async processing. Prioritize urgent requests, batch background jobs.
Observability Stack
| Layer | Tool | Metrics |
|---|---|---|
| APM | Datadog | Latency, errors |
| Logs | Loki | Request traces |
| Metrics | Prometheus | Costs, usage |
| Traces | Jaeger | LLM calls |