The process took about a month. I applied in early November 2019 and had to complete a HackerRank coding challenge.
The HackerRank focused on string manipulation questions (finding certain substrings) and there were many test cases with memory limitations. I did not fully optimize my code and failed 4-5 (out of 11) test cases, but I still received a phone interview.
The phone interview I received was at the end of November and scheduled for early December. It was a one-hour, brief introduction by the interviewer, followed by a LeetCode (easy to medium) question.
Design a random number generator that does not output a number that has already been generated.
The following metrics were computed from 2 interview experiences for the Two Sigma Software Engineer (Internship) role in United Kingdom.
Two Sigma's interview process for their Software Engineer (Internship) roles in the United Kingdom is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Two Sigma's Software Engineer (Internship) interview process in United Kingdom.