I applied through a recruiter. The process took 2 weeks. I interviewed at Two Sigma (London, England) in Sept 2021
Interview
Applied via the recruiter. Then had an intial call with the HR. They sent a hackerrank test which was quite tricky to complete within 75 mins. Then had a technical interview scheduled which the interviewers did not show up for. This happened 2 times before the interviewer finally showed up.
Interview questions [1]
Question 1
General algo questions but seems like they want someone who can do things quickly
first interview was 60 minutes long with a leetcode hard question. second interview was 2 back to back 60 minute leetcode hard with emphasis on data structures. each interview had a 5 minute introduction and 10 minute at the end to ask questions
Standard medium difficulty hackerrank. The question involved decoded an encoded string. It was not something I had seen on LeetCode before and I think was unique to the company. The question was not that difficult but I ran out of time right before I could finish answering.
Interview questions [1]
Question 1
Decode a string encoded using a specific encoding algorithm.
It started of with one phone screen, then if you pass you have 2 back to back technicals, then 3 1 hour behaviorals, hiring committee, and management committee. Standard Leetcode and behavioral questions.
