Case Study

Authentication SaaS Platform

A secure multi-tenant identity platform engineered for enterprise SaaS workloads. Built with Django REST, OAuth2, JWT, and RBAC to support large customer ecosystems with strict isolation, high availability, and low-latency token flows.

Django REST OAuth2 + JWT RBAC

error_outline The Problem

Product teams needed a single authentication backbone that could serve multiple tenants without security leakage, while still supporting high throughput and enterprise compliance. Existing fragmented auth logic across services made policy enforcement and identity auditing difficult at scale.

account_tree Hybrid System Architecture

web Web Clients

smartphone Mobile Apps

lan API Gateway

verified_user

Auth Service Core

Django REST + OAuth2/JWT + RBAC

Redis Session Cache

database PostgreSQL

person User Service

apartment Tenant Service

notifications_active Notification Service

settings_suggest Celery Workers

Ingress Layer

Web Mobile Partner API API Gateway

Identity Core

Auth Service (OAuth2/JWT + RBAC)

Redis Session Cache PostgreSQL Audit Store

Service Layer

User Service Tenant Service Notification Service Celery Workers

terminal Tech Stack

Language Python

Framework Django REST

Database PostgreSQL

Async Redis + Celery

Identity OAuth2 + JWT

Deployment Azure AKS

analytics Impact

groups

5M+

Users Secured

speed

500+ TPS

Peak Throughput

health_and_safety

99.9% Uptime

Critical Auth Availability