Interviewed for silicon team. Have only been asked about the domain specific knowledge in 1st round and system design in 2nd round and C coding in 3rd round.
The interviews were 50 mins each.
The process took 1 day. I interviewed at Amazon (Seattle, WA) in Apr 2011
Interview
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.
Interview questions [1]
Question 1
Given a listed list and an integer, find two numbers in the list that sum to the given number (Test cases)
The phone screen went longer than expected, focusing heavily on implementation details. The interviewer really grilled me on my approach to a Least Recently Used (LRU) cache, asking how I'd combine a hashmap with a doubly linked list. I felt well-prepared since I had gone through system design examples on PracHub, which made me comfortable discussing eviction policies. The later rounds included more technical questions and behavioral interviews, but in the end, I received an offer, though I ultimately decided to decline. Overall, I’d say the process was average, with solid questions.
Interview questions [1]
Question 1
Design and implement a Least Recently Used (LRU) cache supporting get(key) and put(key, value) in O(1) average time. Walk through combining a hashmap with a doubly linked list, eviction policy when capacity is exceeded, and how you'd extend it to handle thread-safe concurrent access.
Recruiter reaches out after applying through Amazon careers, no referral. Had an initial OA, then after a month had four rounds in two days - three coding one system design. Each round had 30 min behavioral and 30 min coding.
Interview questions [1]
Question 1
Questions were mainly hashmap, sliding window and interval related.