Amazon Software Development Engineer interview questions

On campus interview. Aptitude test + 2 interview rounds. The aptitude test consisted of 20 multiple choice questions on data structures(mostly, trees) and algorithms (Big O notation), OS, DBMS (SQL) and networks. The interviews were very technical. The first technical interview generally begins with - 'Tell me about yourself' , followed by a brief discussion on your resume. The second interview is generally harder.

I applied online and I was contacted by a recruiter for an onsite interview. I went to Seattle the next week. It's more a day-long programming assignment than an interview. (9am-4pm). There were two 1-1 meetings, one 30 min and another 15 min. You can discuss with an engineer your project design and tell them about some implementation decisions you made. It's a far more comfortable environment than a writing on the whiteboard interview.