Django Backend for iOS App

I need a Django/Python backend for my iOS app, which is built in Swift.

Key Requirements:
- User authentication ( Database already created
- Data storage and retrieval
- Push notifications
APIS already created
Database: PostgreSQL
Communication: REST API

Ideal Skills and Experience:
- Proficiency in Django and Python
- Experience with PostgreSQL
- Knowledge of REST APIs
- Familiarity with user authentication and push notifications