I applied online. The process took 1 day. I interviewed at Susquehanna International Group in May 2012
Interview
I had the first round phone interview in May. Expect a few standard interview questions such as 'tell me about yourself', 'Why SIG', etc.. Then they rapidly switch the topic to probability. I was asked about 5 probability questions, the last one being tough. I really should have read the Q's on Glassdoor because most of the Q's that I was asked were on this site. I was informed the next day that I did not make it to the 2nd round interview.
Interview questions [1]
Question 1
There are currently 2 boys and an unknown # of girls in a hospital. A mother gives a birth to a baby but its sex is not known. The nurse picks up a baby randomly and it turns out to be a boy. What is the probability that the mother bore 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.