Me postulé en línea. El proceso tomó 5 semanas. Acudí a una entrevista en Amazon (Seattle, WA) en oct 2013
Entrevista
1. Contacted by a recruiter out of nowhere
2. Took an online assessment test
It has 3 questions. Detect and remove loop in linked list, calculate first five highest averages
and return as a Map and the other I forgot. Make sure to write code without errors and mention comments for the code in detail.
3. I passed the online test and was invited for onsite interview.
As I walked into the lobby, I found 40 people waiting to be interviewed. It was horrible. Everyone had four rounds of interviews, each 45 minutes and it included lunch with the interviewers.
Questions are straight from Cracking the code interview. How to print a tree in level odder with each level in new line, a hash map problem which was easy, modifications to hash maps, how to find if a a graph is 2-colorable or not? Code it. I did well on all questions, analyzed runtimes and was happy about how the 4 rounds went.
4. After 2 weeks I received a rejection. I expected this because out of 40, they had to pick about 10. Many of them interned at Amazon before or had at least 2-3 years of experience. It was relative and I didn't feel bad about it.
Preguntas de entrevista [1]
Pregunta 1
How to find if a a graph is 2-colorable or not? Code it.
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.
