Me postulé en línea. El proceso tomó 2 semanas. Acudí a una entrevista en Amazon (Vancouver, BC) en mar 2020
Entrevista
Online coding challenge, second one was close but not quite correct. Went through to 4 x 1 hour interviews (no phone screen), all virtual due to covid-19.
1. Not bad interview, two coding challenges (BFS, sliding window), typical amazon behavioural questions.
2. Weird interview. Was constantly walking around their house, carrying laptop while interviewing. Two coding challenges, both not too bad. Typical amazon behavioural questions.
3. Good interview, system design question, pointed in the right direction for possible tradeoffs.
4. Not a great interview, 2 coding challenges where the interviewer just didn't reply when I asked questions.
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.
Preguntas de entrevista [1]
Pregunta 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.
Preguntas de entrevista [1]
Pregunta 1
Pergunta historicas baseada nos principios de lideranca da amazon.
