I applied through an employee referral. The process took 1+ week. I interviewed at Amazon (Hyderābād) in Jun 2011
Interview
I got a call from Amazon on a friday. I was offered to appear for an online test. Because of personal commitments I was not able to take the test. I took the test on the next weekend. I got a call from the HR on the next Tuesday where she scheduled a telephonic interview for me with the Hiring Manager. This telephonic interview, as a company policy, might be with anyone. There were 2 technical questions posed to me for which I had to verbally speak the code.
Q1: Implement a stack with the getMinimum() function apart from the other basic functions.
A: using another array as a minStack. if(e < minStack.peek()) minStack.push(). if(poppedElement == minStack.peek()) minStack.pop();
Q2: There is an array of numbers where the number are continuously increasing until any position. After which they are continuously decreasing. Find the element where this has changed.
A: binary search.
After the telephonic Interviews, I was called for onsite interviews where there were 5 rounds. Each of them had 2 questions. All technical and problem solving.
I dont remember all the questions now.
Interview questions [1]
Question 1
Consider Str1 and Str2. Tell me the number of occurrences of the cyclic substring of str2 in str1.
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.
