Candidatei-me online. O processo levou 3 dias. Fui entrevistado pela Optiver (Amherst, MA) em out. de 2017
Entrevista
Applied online, had a short behavioral phone interview followed by a hackerrank test. Didn’t pass all the test cases on the third question and got rejected shortly after submitting my test. The phone interview is just a formality, being moved onto the next round seems mostly based on hackerrank results.
Given a list of tuples (AB, BC, AD, BE, CF) build a binary tree and see if it is a valid tree. There’s five different types of errors you have to check for:
Input is in the right format, no duplicate nodes, root only has 2 children, every node is in the tree, no cycles in the binary tree).
A bit anxiety inducing, there were two developers observing and asking questions. Real-time problem solving required, conducted on Hacker Rank virtually, video and mic enabled - quite nervewracking to say the least
I had one round, which was an online HackerRank test. I wasn’t able to pass all the test cases, and as a result, I did not progress to the next stage of the process.
A lot of interviews. Started off with a call, then some online tests. Then a technical interview. Then a live coding interview along with a architecture interview. Last step would have been final day interview but I did not get that far.
Perguntas de entrevista [1]
Pergunta 1
How many bits do you need to store a number up to X. And how can you represent that.