1. Design for High Availability & Low Coupling
Building software that scales requires separating concerns into decoupled services, caching hot data paths, and utilizing non-blocking asynchronous event architectures.
Core Architectural Pillars:
- Stateless API Application Tier: Enables horizontal auto-scaling without sticky session friction.
- Database Read Replicas & Connection Pooling: Isolates heavy reporting queries from live transactional workloads.
- Distributed Caching Layer (Redis): Reduces SQL query latency from 80ms down to sub-3ms.
2. Type Safety & Micro-Services Boundaries
Clean code architecture begins with end-to-end type safety, automated continuous integration tests, and explicit API contracts between microservices.
