The process took 2 weeks. I interviewed at Susquehanna International Group (Philadelphia, PA) in Nov 2011
Interview
Two rounds of phone screening. Roughly 75% quantitative, 25% behavioral by time. On site was similar questions to those posted here, but in a stressful environment. Think interviewers standing up, talking among themselves while you think, and using their phones. Still are helpful when you ask a question, and listen when you think out loud, but nonetheless don't underestimate the need to be able to think under high-preszure environments
Interview questions [1]
Question 1
Hospital has three boys and an unknown number of girls. A mother has a baby. A nurse picks up a baby at random and it is a boy. What is the probability that the mother had a boy?
I applied through a recruiter. The process took 3 weeks. I interviewed at Susquehanna International Group (Sydney) in Jan 2026
Interview
4 rounds of interview
1- recruiter background check
2- HR to screen candidate/ behaviour question
3- trader - technical questions
4- head of operation - heavy operational stuffs
Overall pretty good. Last round you really need to prepare they will ask you to solve issues on the spot under pressure by throwing a lot questions
Interview questions [1]
Question 1
A lot about options
A project give you tomorrow how will you finish it step by step
1. Finish a test, I think it is difficult and involves professional knowledge. The last part is mathematical questions
2. Some questions about the companies, industry knowledge.
3. Test your knowledge of the position
Interview questions [1]
Question 1
What do you think you have that qualifies you for this job
I applied online. I interviewed at Susquehanna International Group
Interview
Phone Call with Australia office HR (General motivational question) for screening purposes. Once you get through this round, interview with US HR(Motivational + Technical). The questions that I got for the technical interview can all be found on glassdoor.
