Design an app feature for an existing app in development (Flutter/Node.js/MongoDB) -- 2

We have an app in development which is a Learning Management System. This project is to design a feature that will integrate with the existing app in development. This project will require the designing of some screens in flutter together with its backend. The backend must be developed using Node.js and MongoDB and integrated with the flutter frontend. This project must be completed in the shorts possible time. Let’s have a chat on further details regarding this project.