1 hour OA with 21 questions on logic probability geometry. Questions need to be done quickly, recommend skipping question if don't know it because questions are not given in order of difficulty. Then phone screen with HR and more technical interviews before the final round.
I applied online. I interviewed at Susquehanna International Group (Dublin, Dublin)
Interview
Received an OA within a couple weeks of applying.
60 mins online assesment, asked a lot of pure logic questions, some dynamic programming and some bayes rule stuff, as well as the standard probability and combinatorics topics.
Took 4 MONTHS to respond with a rejection after OA screen.
Interview questions [1]
Question 1
4x7 grid, rabbit starts on the top left square. on each turn, the rabbit can move one step down or one step right. how many possible ways are there for the rabbit to reach the bottom right square?
Online Assessment, Recruiter Screen, 2 Technical Interviews, then Final Round. Mostly Green Book and Game Theory. Interviewers were nice and helped out. Just standard probability questions, like Green Book questions.
I applied online. I interviewed at Susquehanna International Group (Dublin, Dublin) in Nov 2025
Interview
I applied for the Quant Trader position, as an intern, in Dublin. I received the OA immediately after, and I had around 1 hour to answer 17 probability/logic questions. Overall it was not extremely difficult, but proper preparation is necessary
Interview questions [1]
Question 1
A gardener is eagerly waiting for his two favorite flowers to bloom.
The purple flower will blossom at some point uniformly at random in the next 20 days and be in bloom for exactly 4 days. Independent of the purple flower, the red flower will blossom at some point uniformly at random in the next 20 days and be in bloom for exactly 8 days.
Compute the probability that both flowers will simultaneously be in bloom at some point in time.
Express your answer as a fraction in simplest form. Enter the numerator in the first blank and the denominator in the second blank.