I applied online. I interviewed at Susquehanna International Group
Interview
I completed their OA and got a 30 minute phone interview. They asked me mostly behavioral questions and a very straightforward stats question about expected values. As long as you have a decent grasp on basic statistics you should do fine on the interviews.
Interview questions [1]
Question 1
There's a painting that has a 80% chance of being fake. If the painting is real it's worth 500k, if it's fake it's worth 10k. The seller asks for 120k. Will you buy it?
The process included an OA followed by a phone call. The CodeSignal had four questions: two easy and two medium. Overall, it was average difficulty, with matrix familiarity especially useful.
I interviewed at Susquehanna International Group (Sydney)
Interview
After passing online assessment will be a phone interview. The interview is ard 30mins, after checking ur personal information and WAM, the hr asked me 4 math questions. U r required to solve it manually (no calculator) and when u do it u need to say aloud how u think.
I interviewed at Susquehanna International Group (Bala Cynwyd, PA)
Interview
screen with hiring manager with mostly behavioral one probability
then two rounds of technical and just probability stuff
final round with some group interview stuff some individual interview stuff, tour of trading floor