I understand that you are looking for an experienced Android developer to update your app to API 33. My core ability is complete engineering of mobile applications from the ground up, choosing an appropriate database, logic and UI technologies from the array of existing options.
I have used backend integration with REST API's as well direct DB calls in the past. I also have experience with updating apps without making UI changes, ensuring that all features and functionality are maintained during the update process while prioritizing quality over speed.
I am available to work on this project if you submit your proposal with my relevant experience and estimated timeline for completion. Please feel free to contact me if you would like more information or need me to confirm any part of my proposal.