Amazon Software Engineer interview questions

met 2 people. The first one is an HR staff. The rest is engineers. reverse string and find all the pairs of numbers in a list that sum up to a given number. Then he went ahead to educated me with the 3- tier web services. Presentation layer --> business logic layer --> persistence layer.

The recruiter from Amazon sent me an email saying that somebody has identified me as a potential candidate. The phone interview took 50 mins. Only one question, given a listed list and an integer, find two numbers in the list that sum to the given number; I was asked to code and also give the test cases. The question was straight forward, but the interviewer asked me to tell him the code exactly word by word (character by character). This took a lot of time. In the end, he asked if I have any questions. That's it.