I applied through an employee referral. The process took 2 weeks. I interviewed at Amazon (Guadalajara, Jalisco) in Mar 2015
Interview
The recruiter called me and asked me some basic questions such as what sorting algorithm I would use for sorting an array, and what a binary tree is. After that they sent me a Hackerrank test, I had to describe my solution in terms of space and time complexity of several problems and solved them. Unfortunately they told me that I was not invited to the onsite interview in Mexico, the typical I am not good enough.
Interview questions [1]
Question 1
What sorting algorithm I would use for sorting an array?
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 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.