I applied online. The process took 2 weeks. I interviewed at Two Sigma in Dec 2020
Interview
Submitted CV, contacted for a hackerrank puzzle which I passed, then the recruiter cancels our call on the same day and doesn't wish to proceed. Left a bad feeling as I put more than 2 hours of my own time aside and haven't talked to any Two Sigma employee.
Interview questions [1]
Question 1
3 hackerrank questions in increasing difficulty, standard algos questions in general
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.