Build an extension for app inventor 2 to print from thermal receipt printer

Dear Client, I've just read your job post and much interested in your project. I have been creating high quality and excellent iOS and Android apps for 6+ years using Swift, Objectiv-C, Java, Ionic2. I've developed several apps such as Dating, Shopping, Health/Fitness, Photo & Video sharing, Taxi Booking, Food delivery and etc. I'm expert in Geo-location, GPS tracking, Payment gateway integration, and Social media integration such as Facebook, Twitter and so on. I have good experiences in Firebase, Twillio Api, QuickBlox, AWS and so on. I can also develop backend apis using PHP(Laravel, Codeigniter), NodeJS, Python, as well as web portal including admin panel. I've rich experiences to work with various 3rd-party services and APIs to integrate them into existing and new applications to extend required functionality. The important thing is that I'll work on your time zone for the good communication. If you choose me, you'll never be disappointed in me, and I'll do my best. I can provide daily update for the project status. Looking forward to hearing from you. Best Regards.