I applied through their careers website, and the process started with a basic online maths tests, comprised of questions testing expected value and Bayes’ theorem knowledge. I then completed 2 rounds of interviews (there is a final round/AC day which I did not reach). 1st Round Interview: This takes place with someone from the HR/campus recruitment team. The questions are a combination of motivational and maths questions. In terms of the motivational question, I was asked why I am interested in a career in trading specifically (and not other areas of finance), to elaborate on some projects and information from my CV, and what I spent my time on outside of academics during the first year of university (and how I managed my time doing these things). The interview also asked what I believe was the reason for achieving highly in school, and how I learned to code. Then a few maths questions were asked: - The first being an expected value question of coin flips: it costs $1 to play the game, you flip a coin X times, if every time the coin lands on tails, you get $Y, is it worth playing? - This was followed up with a similar question regarding dice-rolling, being paid out the number that you roll, and getting one opportunity to roll the dice again. It was very important here to point out my thinking and thought process, and the interviewer kept changing the question based on my answers to check that I had grasped the concept. - There was one additional question, essentially using Bayes’ formula/conditional probabilities. - Finally, one question asking to price an option (but explained as a real-life scenario, the concept of an option not being mentioned). This was relatively basic, as they were looking for you to price the option by using the expected value of profit from holding the option, and they gave two possible states of the world with their respective probabilities. 2nd Round Interview: This interview was with a trader. They emphasised that the time taken to get to an answer for any question was not important, as long as you got to the correct answer and explained your thought process. Being over the phone, explaining your thinking out loud was key. The actual maths problems were very similar to the first interview, the same concepts, just in slightly more detail, or more complex problems. This interview had fewer motivational questions, although I was asked if I was okay moving to Dublin full-time (as that is where SIG’s large European office is based). Unlike other quant/trading firms, the interviewer specifically mentioned that they like teaching people the fundamentals of the markets before dabbling with any also trading or coding-related topics, and none of the interview questions involved to do with programming or technology. They also mentioned that is nice to see applicants with some experience trading their own money in real markets (even if a tiny sum). They also do not mind applicants without a maths degree, basic probability and statistics knowledge suffices for the entire interview process, and they care a lot more about game-playing and strategies of approaching games. I got the overall impression that SIG are very committed to teaching new hires, and retaining them for a while. It seems as if they invest a lot into their graduate training programme, and have a solid structured teaching process to get new hires up to speed. They were also very quick to start processing my application and respond compared to other firms, taking under a week to respond after the maths test, and after both interviews.