Current Position : SDE -1 at a startup
YOE: 2.8

I am sharing the interview experience of oracle cloud infrastructure.

Round 1

• This was pretty straight forward round, interviewver talked couple of minutes about OCI team then asked about my introduction.
• After that he asked about LRU cache implementation approach and asked me write code for it. After the implementation and testing(he tested almost 10-12 cases), he asked me whether the given code for cache is thread safe or not.
• After this he asked me about one challenging thing I did in my career.
• Also asked me about if I have used any cloud technologies (like AWS, Azure etc) and we also talked about how deployment happens in my current company.

Round 2

• This round was taken from US as the team in not present in India and they are hiring engineers for this team.

• Interviewver asked me introduce myself and then he introduced himself and talked a little bit about the team.

• Asked me two behavioural questions, A project that I think is the most challenging wrt technical sapects and also asked what happened when you were not able to meet deadline?

• Then he asked me question, given a list of error strings like following give me top m errors.
  errorA errorB errorC errorB errorB errorB error C error D errorD errorC errorC

  if m = 2, then output will be errorB and errorC

• I first proposed a brute force solution which included sorting then proposed max heap solution and coded it and also dry run of the code but I was not able to give O(n) solution

• Question link : https://leetcode.com/problems/top-k-frequent-elements/