I applied online. I interviewed at Amazon in Sep 2025
Interview
3 rounds, 1st and 2nd are back to back, you have 30min break between the 2nd and 3rd round. Each round lasts 1 hour. You might be asked about your previous experience and projects; my interviewer dived quite deep into my previous experiences so be prepared.
1BQ, 1coding, 1 OOD+BQ
Interview questions [1]
Question 1
Coding: backtracking + trie tree
BQ: most challenging project; how do you solve conflict with your colleagues; a time when you dive deep and learnt sth
OOD: Cache, extensible in eviction policy (like LRU, LFU, etc
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.