I applied online. The process took 3 months. I interviewed at Susquehanna International Group in Dec 2013
Interview
Application was online via their website, involved uploading C.V and cover letter. Was then contacted for a first round phone interview, approximately half an hour long. Some personal questions but almost all mathematical problems to work on. Second round was a longer face to face mathematical interview with two traders followed by a final round mathematical interview with a partner.
Interview questions [1]
Question 1
Several complex mathematical problems including ones with several parts and separate computations, which was challenging to explain over the phone.
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