Amazon Language Engineer interview questions

One round of 1 hour phone screen, and a final loop consisting of four 1-hour rounds. Coding questions and a lot of LP questions are covered. It lasts around a month to finish the interview. Messy organization. Only one interviewer is from the team, while the rest of them are not. The questions asked covered a wide range of topics in NLP, and the coding is more like CS algorithmic thinking. The skills tested are totally different from what's mentioned on JD and the preparation materials sent by their HR