Ho presentato la mia candidatura online. La procedura ha richiesto 2 mesi. Ho sostenuto un colloquio presso Amazon nel mese di giu 2014
Colloquio
I applied for job at Amazon in Netherland in The Hague.
After one month I received an email of confirmation that I was selected for the first stage of the interview.
First stage was a online coding test, solving two algorithms in the language of your choice with time limits of 70 minutes for both tasks. Tasks aren't so hard, even if you don't have practice of solving algorithms you still have enough time to solve it. I also tried to solve algorithms with better efficiency. As I remember one task was to reverse each word in a sentence with the possibility of very large input string.
After I submitted solved algorithms, one week later I was contacted by their recruiter to arrange two technical phone interview. Both interviews were on the same day by the two hour gap.
On first technical interview, first step was to connect to given url. On URL was shared text editor. My task was to setup conceptual class structure (OOP), for describing on form data and their types with the possibility of validating those data. And after that there was some question about my current role. And last five minutes I have a chance to ask them a couple of questions.
Second interview was a little harder because the questions were about scalability of database and JVM level. Specially about database scalability when I need to describe architecture and how to organize and connect databases. It was quite hard explaining it without a whiteboard.
And at the end there were couple minutes left for me to ask some questions.
One week later I'll get a response from their recruiter that I didn’t passed to the next stage.
Domande di colloquio [1]
Domanda 1
As I mentioned, some question about database scalability.
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.
Domande di colloquio [1]
Domanda 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.
Domande di colloquio [1]
Domanda 1
Questions were mainly hashmap, sliding window and interval related.