I applied through an employee referral. The process took 4 weeks. I interviewed at Two Sigma (New York, NY) in Jan 2022
Interview
Very solid hiring process.
The interviewers were very friendly.
2 screening rounds, one take-home hacker rank test, and a phone screen.
Hackerank consisted of 2 questions one easy and one medium problem
Phone screen lasted 1 hour, with some general questions and a live coding session.
On-site consisted of 3 rounds, 1 hard algo question, 2 basic coding questions but tough to complete in 1 hour.
Interview questions [6]
Question 1
- How to send data to another process?
- Memory allocators
Onsite 3 rounds:
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.
