React/Django developer with jsx & MERN Stack.

We have two web applications the first one is in Django/React and the second one is in React/Node(spa). the second one is a simple application and we want to integrate the second application frontend into the first one(Django/react) application. so two applications will work on Django/React application and also use the Node backend for functions of the second application. In other words, we just need to integrate only the front end and it will use two backends( Django + Node). The second one is simple and about 3~5 pages with simple sections. Please apply your proposal if you are confident with React/Django/Node/MongoDB/PostgreSQL. We need to integrate the SPA to main application. so we will don’t use the node backend api. django api was already ready on main application. Just integrate the two frontend on one backend and add some features.
Thank you.