I applied through a recruiter. The process took 4 weeks. I interviewed at Amazon in Jan 2014
Interview
They contacted me through LinkedIn and offered an online test as a previous step for a personal interview. I said I was interested and in some days received the link to the test and some instructions.
A couple of weeks after the test they contacted me as a follow up, saying that I hadn't been selected
Interview questions [1]
Question 1
2 questions:
* Code a binary tree from an input of the like:
[2, 4], [1, 2], [4, 8], [5, 9], [1, 3], [2, 5], [3, 6], [3, 7]
* Design (OO Language) a billing system
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.
