Python Flask GCP Firebase project to store user files in GCP Storage Bucket

Hi, I am looking for someone to help build a small prototype / framework to upload a user's file into a google storage bucket. This needs to be done on 2 web pages utilising Python 3.7 and Flask which will be run from Google AppEngine. User Authentication will be through Firebase Authentication. Once the file is stored it needs to be associated with the user that logged in and uploaded it. The upload page will need to capture a few other details from the user prior to uploading the file. These will need to be stored in a database/datastore. The 2 web pages should use templates but only need to be fairly basic (but making them look nice is up to you at the moment). If this goes well then I will hopefully move on to creating a proper app in a new project.