I applied online. The process took 3 weeks. I interviewed at Amazon in Feb 2014
Interview
I applied online in Jan 2014. Received an email from recruiter about setting up two phone interviews, each of 45 minute length. The recruiter was supposed to send me a follow up email about which areas the questions will cover etc. but it was sent after the first interview started.
The interviews were back to back with 15 minute break between them.
The questions were purely technical and only one of the interviewers asked about why I would like to work in Amazon, I think it was more to do with starting a conversation than taking any notes from my answers.
Both interviewers for the first 10 minutes asked questions on some basic algorithms, their complexities and Maps etc.
Interview questions [1]
Question 1
The questions were something on the lines of,
- Given a tree, output levelwise nodes (Ans: It was actually the BFS algorithm, but I didn't realize it at that time)
- Find first unique substring (In O(n)) (Ans: Use counting sort variant)
- Convert an array into balanced binary search tree (Ans: First sort the array, then use recursive algorithm after splitting the array at mid, and using the mid as a node)
- From two arrays N and M find the combinations that add up to say X (Ans: I was drained by the time second interview started, so the only answer I came up with was of O(n2) complexity i.e. using two FOR loops)
La entrevista para el puesto de Software Engineer Intern en Amazon fue únicamente en una prueba técnica online con ejercicios de programación y algoritmos, tipo LeetCode. El nivel era alto para unas prácticas, y la plataforma funcionó correctamente durante la evaluación.
Online assessment 1 hour 2 system design questions difficult as well
1 Final round interview 25 min behavioral and 35-40 min technical questions 1-2 leet-code medium difficulty questions data structure analysis questions
Interview questions [1]
Question 1
Amazon Leadership principle for behavioral section
Online Assessment (OA): Usually involves two coding problems (debugging/solving) and a work-style simulation (behavioral/leadership principles).Final Interview: A 45-60 minute interview via Amazon Chime involving one technical question (data structures/algorithms) and behavioral questions.Offer: Results can take 1–3 weeks after the final interview.
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