Amazon S3 File Browser PWA for mobile

Job ID: 31119025

Budget: $250 – $750 USD

I need a PWA that runs on android (chrome mobile) and ios (safari mobile) similar like dropbox but using the amazon s3 protocol.
Features are browsing files and folders, uploading and downloading files and open files in the native os browser. Nice to have would be a photo upload from the camera.
Files should have icons based on their file extension showing the type of file ( e.g. doc, pdf, jpg ...)
Initial setup and configuration of the backend parameters URL, accesskey and secretkey should be done by scanning a QR code holding these fields. ( I will provide it )
Please tell me with your application what technologies you are going to use and your previous experiences with PWA and amazon s3.
Of course, I will need all sources and copyright on the artefacts.