Protostar is a new company which is based in China and it was established in 2018. They are devoted to develope courses of pure American textbooks. They aim at conneceting best teachers in America and children all around the world and providing an online learning platform with a great learning experience. They are looking for native English teachers, especially American teachers since they are after American curriculum. A bachelor's degree is required and teaching experience and TEFL certificate are preferred, but not necessary. There are a maximum of 4 students in each class, ranging in age from 5 to 9 years old. And the hourly rate is normally $16 and each class last 40 minutes.