All work

Full Stack / Engineering case study

Multi-Tenant CRM System

A production-oriented CRM with organization-level data isolation, role-based access, audit tracking, and cloud file storage.

DjangoPythonReactTypeScriptPostgreSQLAWS
multi-tenant-crm

System overview

Multi-Tenant CRM System

React + TypeScript
Django API
PostgreSQL
AWS S3
Organization-level data isolationAdmin, Manager, and Staff access rolesAutomated activity logging through Django signals
Architecture illustration

01 / Overview

About the project

Designed a Django and React system with PostgreSQL, JWT authentication, protected frontend routing, Zustand state management, and AWS S3 integration.

02 / The approach

How it works

Applied tenant-aware data boundaries, role-based permissions, Django signal-driven activity logging, and protected frontend routes.

System design

How the pieces connect.

React + TypeScript

Protected CRM interface and Zustand state

Django API

Tenant isolation, JWT, and RBAC

PostgreSQL

Organization-scoped relational data

AWS S3

Application file storage

  • React + TypeScriptDjango API
  • Django APIPostgreSQL
  • Django APIAWS S3

Key features

  • Organization-level data isolation
  • Admin, Manager, and Staff access roles
  • Automated activity logging through Django signals
  • JWT authentication and protected routing
  • AWS S3 file storage