Candidatei-me por meio de recrutador(a). O processo levou 2 semanas. Fui entrevistado pela Amazon (Hyderābād) em dez. de 2012
Entrevista
Recruiter had short-listed my profile from one of the job portals and contacted me to schedule an online coding test on interviewstreet.
The questions were:
1. Find all prime numbers before the given number n.
2. Find the kth largest number in a BST
3. Find the transpose of a given matrix.
4. Given a directory with several different files. Find the student with max avearge number.
one more, which I dont remember.
Time given was 2 hrs.
After going through, had the first telephonic round.
Questions asked were:
1. Find the missing card in a deck. The cards are passed as a stream of input.
2. Find the median of 2 sorted arrays.
3. Construct a tree from the post and preorder traversals. [Asked to mail the code for the same within 15-20 mins.]
I messed up and hence within a week got a regret mail, but the experience helped me in identifying my areas of improvement.
Perguntas de entrevista [1]
Pergunta 1
Find the missing card:
I gave an O(n) space approach using hashtables, but he wanted a much better optimized solution, after some thinking thought of using only required bits or using the cards as an A.P., however these thoughts came after the interview.
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.
Perguntas de entrevista [1]
Pergunta 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.
Candidatei-me online. Fui entrevistado pela Amazon (Calgary, AB) em jun. de 2026
Entrevista
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.
Perguntas de entrevista [1]
Pergunta 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
