I applied online. The process took 1 week. I interviewed at Amazon (Seattle, WA) in May 2012
Interview
The first round of the interview for the position of SDE for Amazon Services team was a phone interview. The interviewer asked me to join him on Collabaedit, which is an online collaboration tool. First he asked questions about my projects in school and I answered everything. Then he asked to code a problem. He gave me a binary tree and asked me to convert the binary tree into a doubly circular linked list(DCLL). The elements in the DCLL were in an inorder traversal of the tree. I told the logic of how to solve the problem and I coded the problem partially. I made some mistake in coding the problem to perfection. I asked him to ask another question but he said that he is out of time.
I was expecting another call from Amazon after this phone interview since it didn't go that bad but they sent me a rejection mail after a week.
Interview questions [1]
Question 1
Given a binary tree, convert it into a doubly circular linked list. The structure of the tree was given by the interviewer and also the structure of the doubly circular linked list.
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.
Interview questions [1]
Question 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.
Um teste de código online, se aprovado, vai para o loop. O loop é 4 entrevistas seguidas, duas em inglês e duas em português. 3 entrevistas técnicas de código, todas as 4 têm pergunta de liderança.
Interview questions [1]
Question 1
Pergunta historicas baseada nos principios de lideranca da amazon.
