Interviewed at TWO Sigma
Interview Details – submitted my resume, after one day, got a phone interview, then took the online code test. Two hours code tests. all related to sql, linux,programming.
Interview Question – a lot of sql, linux programming. not difficult, but needs to remember those commands Answer Question
I applied online and the process took 2 weeks - interviewed at TWO Sigma in July 2013.
Interview Details – You will be given a code assessment, and have to finish it in 2 hrs. But you can choose the time you want to start, and email the solution back in 2hrs. The question is not difficult. And then you will have a phone screen, and you will be asked some question about the projects on the resume, and some technical questions. I was asked several questions about OS. The final round will be onsite interview, but I didn't perform well in the phone screen, so I don't have that chance.
Interview Question – How to compare two doubles in C++? Answer Question
I applied through a recruiter and the process took 2 months - interviewed at TWO Sigma.
Interview Details – Got a mail from the recruiter who then set up a phone interview. It wasn't technical, just what I like and what I don't like. Why I'd like to work at TS?
Then there was this technical interview over phone. Where you had to solve couple of programming problems. If you have good experience with Data Structure and Algorithms, you should pass that round easily.
Then there was onsite round. It consisted of 5 interview. It was a bit different from other tech companies in the sense that each interview was 1hr30mins. In other tech companies, it's usually 45 mins per interview. They asked lots of technical and behavioral questions. You are given a laptop for coding and white board for discussion your ideas. The interview questions are similar to other giant tech companies, however they ask more mathematical questions.
Interview Question – I am not supposed to share interview questions. Answer Question
I applied online - interviewed at TWO Sigma in May 2013.
Interview Details – I received an email from HR looking to schedule a phone interview that they said would take around an hour. We scheduled the time, and I took time off from my current job in order to make sure that I could do it without distractions. Finally the time came, and there was no call. After waiting another 15 minutes, I called the HR rep who said the team would be calling me directly and that I should keep waiting. I waited patiently by my phone for another 40 minutes until I received an email from HR saying that there was a miscommunication and they would like to reschedule. I told them that it had to be around lunch time as I didn't have the ability to leave work again, and then I never heard from Two Sigma again. Needless to say, I was a little angry that I had wasted my time waiting for their call and their lack of communication.
Interview Question – Apparently, the most difficult part is getting them on the phone. Answer Question
Very Difficult Interview
I applied online and the process took 2 weeks - interviewed at TWO Sigma.
Interview Details – The interview is very technical; studying the CLR algorithms book in advance is the best route to take before submitting your resume. There is typically a screening interview by HR just to find out if the candidate is a good fit attitude-wise, followed by a code test and then potentially two days of in-person interviews. HR will send a candidate home early in the day if the interviewers don't think the candidate is a good fit for the position.
Interview Question – I don't remember a specific question, and even if I did; I don't necessarily think that posting it online is positive thing to do for the candidates or the company. As I mentioned above, studying the CLR book is the best route to success. Answer Question
I applied through a recruiter and the process took 4+ weeks - interviewed at TWO Sigma.
Interview Details – Had a code test followed by a ph interview and a full day of tech interview. Code test questions same as mentioned before - sorting strings and numbers in place, data center sync problem. phone interview was ok, just a chat about the past project and simple questions. Onsite questions were tricky and covered data structures, algos, string matching, tries etc.
Interview Question – sorting strings and numbers in place, data center sync problem Answer Question
I applied through other source and interviewed at TWO Sigma.
Interview Details – I went into their office for interviews. I waited over 45 mins for them to start the interviews. I sat in a room while they took turns coming in to interview me. Frequently, I had to wait 25 minutes in-between interviewers. Horrible experience.
Interview Question – What was my grade point average in college? View Answer
Very Difficult Interview
I applied through a staffing agency and the process took 2 months - interviewed at TWO Sigma.
Interview Details – I initially applied through a headhunter. The process began with an HR interview, which mostly asked about my background and why I was interested in applying. The HR interview was followed by a timed coding test that, if I recall correctly, had a 2 hour time limit. The test can be taken in Java, C++, and another language that I'm not remembering; it wasn't particularly difficult, and I didn't need the two full hours to complete the two problems.
The next step was a full day of technical interviews. I met with seven or eight people from different teams over the course of the day, and all of the interviews were technical. I mostly solved problems by writing on paper, but later in the day I wrote code on a computer as well. The day ended with a meeting with HR, who outlined the offer process.
Next was a series of phone calls with different team members in order to help me make a choice between the two teams I was being considered for. Once I chose a team, the formal offer was extended.
Interview Question – An interviewer asked me to intuitively walk through basic market concepts, ending with an intuitive definition of "beta," despite me having no finance background. Answer Question
Reason for Declining – While Two Sigma was my favorite out of the offers I received, locational constraints prevented me from accepting the offer.
Interviewed at TWO Sigma
Interview Details – Got a phone call asking about the basic information. It's not technical and they will quickly introduce about their company. Then get two questions. The questions are same with the other ones. One is the sort word and letter, another is distributed backup.
I applied through a recruiter and the process took 4 weeks - interviewed at TWO Sigma in February 2013.
Interview Details – A recruiter contacted me and setup an HR phone interview for me. The interview was like a general chat, nothing specific. She set me up for an online code test which involved solving two intermediate difficulty questions, which are not too difficult.
I passed the code test and had an onsite interview setup. I expected it to be more difficult than it was and I did not prepare adequately. The interview itself wasn't too difficult but I was rusty and it showed. They let me go after a lunch. Seemed like a great place to work.
Interview Question – They expect you to directly write code on the computer without the whiteboard.
Write a code to do regular expression matching. View Answer
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