Solicité el puesto a través de la escuela superior o la universidad. El proceso duró 2 meses. Acudí a una entrevista en Amazon (San Diego, CA) en nov 2012
Entrevista
I saw amazon at UCSD career fair (DECAF). I talked to an engineer and he asked me to describe round robin. I answered the questions and a week later I got a request to do a phone interview.
The first phone interview went well. The interviewer asked me an algorithm question regarding finding duplicates in a list. He had me write it out on paper. When I was done, I read him the code (in java). Basically I used a hashmap to store values in the list, if a duplicate was found the value in the map was increased upon entry. It was pretty straight forward. There was one other restriction but I can't remember. (sorry)
The second phone interview was with a senior level engineer. He asked much more difficult questions and didn't allow much time to process the question or do the alogrithms. The coding was done via an online collaboration tool. He wrote some method headers and I filled them in. He really was pushing the pace, wouldn't let me think much about the problems.
Preguntas de entrevista [1]
Pregunta 1
Given a spase matrix, create a class that would:1. have a method to take the sparse matrix and put into a more efficient data structure. 2. retreive data from the data structure. 3. Use a data structure that would produce an iterator that keeps track of the order in which the entries were added.
I was given a class for the data type (xi, xj, value).
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.
