I am Software Development Engineer- 2 at Amazon with 3 years of experience. At Amazon I have been regular at taking interviews for SDE1 which include interviewing candidate on Problem Solving , Algorithm and Data Structures.
Currently I prefer interviewing candidates with 0-3 years of experience on their Problem Solving , Algorithm and Data Structures skills.
My service include an hour of interviewing with candidate with questions from easy/medium/hard level according to firm.