I applied through university. The process took 4 weeks. I interviewed at Amazon in Oct 2013
Interview
I apply amazon in school career fair and get a interview invitation in two weeks. First round is technical interview, it will give you three coding questions. you have one hour. you should not only write the code but also analysis the time complexity of your code. the questions are not very hard, but you need to write it carefully, you may not have the time to run your own test cases
Interview questions [1]
Question 1
you need to write the code correctly without IDE's help and be able to know the time complexity of the data structure you are going to use, even though the data structure might be Java JDK, you still need to know the complexity
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.
Interview by recuriter, Phone interview over Chime with one easy Leet code problem and 2 behavioral questions. Although the interviewer was very casual at the start of the conversation, it quickly changed into behavioral questions at the start.
Interview questions [1]
Question 1
Encoding optimization algorithm and talk about a project you did recently.