Me postulé a través de una recomendación de un empleado. El proceso tomó 3 semanas. Acudí a una entrevista en Amazon (Detroit, MI) en nov 2014
Entrevista
I applied through a referral 6 months ago and didn't hear anything, which disappointed me. Recently that same friend inquired if I was still interested and I gave it a shot -- this time he followed up with the recruiter and I was contact within a week.
The recruiter was helpful and thought I would be a good fit for the team. He wanted to get me into the on-site interviews occurring in 2 weeks so he set me up with a phone interview two days later.
The phone interview was with an engineer and involved two technical questions using an online code editor. One question was about data structures, and the other was object-oriented / system design. It was a good experience and the interviewer was pleasant and helpful.
I felt pretty good about the interview but felt I could have used more time on the second question (only had about 10 minutes left). The recruiter followed up and said that they wanted me for an on-site interview, which I was pleased with.
The on-site interview was about 3 and a half hours with 4 different people. Each asked me a technical question and some behavioral questions. One question involved object-oriented design. The other questions involved algorithms, two touching on specific data structures. Each of these technical questions had follow up questions regarding optimization, trade-offs, and alternate solutions.
The interview process was long and taxing, but overall a good experience. All interviewers were pleasant to talk with and helpful in both discussions about the problems and answering my questions about the team. Again, though, time was tight!
Overall the entire process this time around was interesting, fun, and especially challenging.
Preguntas de entrevista [1]
Pregunta 1
Due to NDA I don't think I can share the details of the question, but the most challenging and interesting question involved an algorithm over a grid of data. The problem itself was challenging, and had a lot of area to explore optimization and good programming practices.
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.
Me postulé en línea. Acudí a una entrevista en Amazon (Calgary, AB) en jun 2026
Entrevista
Online Assessment is the first step in the process. I didn’t have an HR phone screening and went straight to the OA after applying. It was sent to me about a week after I submitted my application.
Preguntas de entrevista [1]
Pregunta 1
The first question is LeetCode style algorithms question, and the second question gives a full stack repo (choice of Java, NodeJS, or Django) and asks to solve a backend issue which is causing a bug in the frontend. Unit tests must pass to pass the second question. You can run both backend/frontend indivdually or together