I applied online. I interviewed at Two Sigma in Feb 2025
Interview
OA with 3 questions. 1 Leetcode style and 2 pandas based. One of the pandas-based is an (optional?) extension of the same question. Did all three, and got an interview. The interviewer was not very friendly. They seemed tired and uninterested. Asked an open-ended discussion on designing an ML-based solution to a problem. Features, models, and what all do you consider when designing. I believe I answered everything reasonably well but got a rejection email the next day.
Interview questions [1]
Question 1
Input output of the model, features, reasoning behind them, assumptions, how will the assumptions affect your model.
I interviewed on zoom with three different interviewers. The first was talking to a recruiter about interview processes and why I am applying and going over my resume. The second was with a quant researcher about my resume, past research and domain knowledge and technical questions. The third round was with another quant researcher about past research and some more technical questions. I didn't proceed after that.
Interview questions [1]
Question 1
statistics and regression questions and some math brainteasers
The interview process typically starts with conversations with team members, followed by three rounds of technical interviews focused on data analysis, coding, and statistics. Each round includes follow-up questions that probe deeper into the candidate’s reasoning, methodology, and ability to apply concepts under realistic problem-solving scenarios.
Interview questions [1]
Question 1
one question about citi bike problem, one about correlation
Interview mostly consisted of conceptual ML questions and general experience, with no coding. The interviewer was super nice, but they were looking for more experienced candidates, which my years of experience didn’t quite qualify me for.
