Great, I have 10years exp with Masters degree Software engineering from Canada,
I can sure help you build the text extraction and review the invoice accuracy with Amazon APIs,
I have been building many products that involve AI/Machine learning for research as well as product development, my recent work is prosthetics tooth color estimation, AI face recognition using facenet, chatbots using ML and more, I can show you demo or please google Clofus to know more about our works and looking forward to work with you long term
thanks