Building a SaaS Platform with React & Django

How to build a SaaS platform using React frontend and Django backend. Authentication, multi-tenancy, billing, and deployment strategies.

ReactDjangoSaaSAWSPython

A practical guide to architecting a multi-tenant SaaS application with React on the frontend and Django REST Framework on the backend.

The Stack

Recommended SaaS stack for 2026:

Frontend: Next.js + TypeScript + Tailwind CSS
Backend: Django REST Framework + PostgreSQL
Auth: JWT with refresh tokens
Deploy: AWS EC2 + RDS + S3 + CloudFront
CI/CD: GitHub Actions

Multi-Tenancy Strategy

Shared database with tenant isolation via foreign keys is the sweet spot. Each request includes a tenant context, and Django middleware automatically scopes all queries.

Authentication Flow

Use short-lived access tokens (15 minutes) with longer refresh tokens (7 days). Store access token in memory and refresh token in an httpOnly cookie.

Lessons from Production

Design your data model for multi-tenancy from day one
Rate limiting and abuse prevention are not optional
Monitoring (Sentry + CloudWatch) saves you from silent failures
Start with a monolith, extract services only when needed