I applied online. The process took 4 weeks. I interviewed at Amazon (Cape Town) in Apr 2022
Interview
I had a total of 4 interviews. The first interview was a phone interview where it started off with a few technical questions combined with behavioral questions. The total time was 1 hour. The next 3 were all on one day and all followed the exact same structure. Each starting off with behavioral questions and then moving onto the technical aspect of the interview. These 3 were more in depth questions. For each behavioral question they asked deeper and to describe it in depth.
Interview questions [4]
Question 1
Programming question - Given 2 sorted arrays, merge them. Follow up, ensure only 1 of each element is saved in the merged array aka no duplicates.
Programming question - Given reverse polish notation, return the integer value of the expression aka "5,3,+,2,/" would be 5 + 3 = 8 and then 8 / 2 = 4.
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.
