Ho presentato la mia candidatura tramite l'università. La procedura ha richiesto 2 mesi. Ho sostenuto un colloquio presso Amazon (San Diego, CA) nel mese di nov 2012
Colloquio
I saw amazon at UCSD career fair (DECAF). I talked to an engineer and he asked me to describe round robin. I answered the questions and a week later I got a request to do a phone interview.
The first phone interview went well. The interviewer asked me an algorithm question regarding finding duplicates in a list. He had me write it out on paper. When I was done, I read him the code (in java). Basically I used a hashmap to store values in the list, if a duplicate was found the value in the map was increased upon entry. It was pretty straight forward. There was one other restriction but I can't remember. (sorry)
The second phone interview was with a senior level engineer. He asked much more difficult questions and didn't allow much time to process the question or do the alogrithms. The coding was done via an online collaboration tool. He wrote some method headers and I filled them in. He really was pushing the pace, wouldn't let me think much about the problems.
Domande di colloquio [1]
Domanda 1
Given a spase matrix, create a class that would:1. have a method to take the sparse matrix and put into a more efficient data structure. 2. retreive data from the data structure. 3. Use a data structure that would produce an iterator that keeps track of the order in which the entries were added.
I was given a class for the data type (xi, xj, value).
Surprisingly easy — I expected tougher questions, but the coding round felt more like a warm-up. The main challenge was a DSA problem about counting islands in a 2D grid, which led to a discussion on DFS versus BFS and handling large grids. Funny enough, I had revisited that exact type of question while prepping on PracHub, which made me feel more confident. The interview wrapped up with a behavioral round, and I accepted an offer, but ultimately decided to decline it for another opportunity. Overall, it was a smooth experience.
Domande di colloquio [1]
Domanda 1
Number of Islands — given a 2D grid of '1's (land) and '0's (water), count the number of connected islands. Walk through DFS vs BFS, and discuss how to avoid revisiting cells (in-place mutation vs visited set) and what changes if the grid is huge and must stream from disk.
It started with an OA, and then after a few weeks, I got invited to four rounds of interviews: technical and behavioral at 3 of the 4, and behavioral only at one.
Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso Amazon (Calgary, AB) nel mese di giu 2026
Colloquio
Online Assessment is the first step in the process. I didn’t have an HR phone screening and went straight to the OA after applying. It was sent to me about a week after I submitted my application.
Domande di colloquio [1]
Domanda 1
The first question is LeetCode style algorithms question, and the second question gives a full stack repo (choice of Java, NodeJS, or Django) and asks to solve a backend issue which is causing a bug in the frontend. Unit tests must pass to pass the second question. You can run both backend/frontend indivdually or together
