
Two Sigma Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 279 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Two Sigma.
Software Engineer
We had 2 technical rounds then 1 behavioral round. The first technical round had one 45-60 minute interview. The second technical round consisted of 2 interviews back-to-back. The behavioral round had 3 interviews back-to-back. All the technical interviews were Leetcode style questions and were conducted by engineers or engineering managers.
- Can you tell me about a time you had a conflict with your manager and how you handled it?
Software Engineer
It was a long and drawn-out interview process. It started with an online technical interview. Then there was a one-hour technical interview, followed by two more one-hour technical interviews back-to-back. I got perfect scores on all four technical interviews. After that, there were 3 behavioral interviews in a row. I did okay on these, but the behavioral questions felt like they were more about personal communication skills than technical ones. Then I got a letter from HR saying I'd have to wait a couple weeks for the next step. By this time, I had other offers from top companies with deadlines, so I couldn't wait around for Two Sigma's long process and risk missing out on those. Their process is just too drawn out, and I bet they lose out on good candidates because of it.
- Can you share an instance where you had to complete a project with a colleague you had friction with?
Software Engineer
The process involved an online assessment followed by a 4-round virtual onsite. These rounds included 3 coding interviews and 1 design interview. After that, there was a team match stage, which also covered behavioral questions. Finally, there was a meeting with the director, which was essentially a skip-level manager conversation. I got matched with 3 teams and one manager was very keen, but the last discussion with the director didn't go well. The recruiter wouldn't give any feedback. The whole thing took about two months. It's pretty frustrating to go through such a long process without any feedback. I'd only suggest applying if you're really set on getting hired here. It's hard to tell what the hiring standard is, and clearly, the final decision-maker can just reject you.
No confirmed questions were included in this interview report.
Two Sigma Software Engineer Interview Questions
Quoted word for word from Two Sigma interview reports.
“Write a method getMissingLetters that accepts a String called sentence and returns all the letters that are missing to make it a pangram.”
Read reports →“Given a set of integers and an integer n, find the n-th smallest multiple of the integers in the set.”
Read reports →“For a game involving a sequence of numbers where players pick from either end to maximize their score, what is the highest score a player can get if both play perfectly?”
Read reports →“What is the probability of getting a second head given a coin with a probability x (uniformly distributed between 0 and 1) of showing heads on each flip, after already getting the first head?”
Read reports →“Given a Directed Acyclic Graph (DAG), what is the maximum number of nodes that can be selected such that no two selected nodes share a direct relationship?”
Read report →“Can you create an iterator that filters numbers divisible by 5 from an existing iterator?”
Read report →“Given a table of four currencies with non-symmetric trading values, find the maximum end value starting from a given currency and ending at another, with the constraint that you cannot trade for the same currency twice.”
Read report →“Can you find the number of friend circles based on a given friend relationship matrix, where friendship is transitive?”
Read report →“What's the max profit you can make from two stock transactions given a list of stock prices?”
Read report →Formats, difficulty and experience
Across all 279 Two Sigma interview reports.