I applied through a recruiter. I interviewed at Millennium (London, England)
Interview
125min HackerRank Test
5 Questions, 1 R (not answered) question, 3 Python questions, 1 SQL question.
The python questions were challenging and I was surprised to get asked a question in R and SQL. I got all the questions correct apart from the R question but some of the hidden tests failed, likely due to efficiency. Did not get through to the next round.
Interview questions [1]
Question 1
Function taking a list of numbers, had to figure out how many triplets of numbers were even.
Phone Interview 45 mins, single interviewer. A short intro about the team for about 10 mins and multiple technical questions. The topics are mostly data structure, dynamic programming, graphs and sorting.
Interview questions [1]
Question 1
How to find the median for 10T data across 10 servers?