Technical Architecture of a Dental Bookkeeping SaaS Platform with QuickBooks Integration

This article details the technical architecture for building a cloud-native dental bookkeeping SaaS platform with QuickBooks integration. It covers a multi-tier design including a React/Next.js frontend, API gateway with JWT/OAuth 2.0 authentication and RBAC, independently deployable microservices, and Kubernetes-orchestrated infrastructure with Canadian data residency. The platform connects dental clinics to QuickBooks Online while supporting multiple client types through a single API surface secured with TLS 1.3.