I applied online. I interviewed at Susquehanna International Group (Bala Cynwyd, PA)
Interview
I had a initial screening with them, got rejected but questions were pretty similar were around probability, markov chain and combinators, sonme logical questions, total 9 questions to do within 60 minutes
Interview questions [1]
Question 1
Aaron, Bryce, and Craig are all distinct integer ages (meaning their ages are whole numbers and all different from each other) They had the following conversation:
*i. Bryce to Craig: You're the youngest one. *ii. Aaron to Bryce: Your age is exactly 70% greater than mine. *iii. Aaron to Craig: Your age is the average of my age and Bryce's age. *iv. Craig to Aaron: I'm at least 8 years older than you.
However, not all of these statements are true. When speaking to someone older, the speaker always tells the truth. Otherwise when speaking to someone younger, the speaker always lies. How old is Craig?
I applied online. I interviewed at Susquehanna International Group (Dublin, Dublin) in Nov 2025
Interview
The interview was online over Zoom. Started with standard questions on why do you want to work here and why would you be a good fit. Then most of the interview was performing a maths problem.
Interview questions [1]
Question 1
A problem on Bayes theorem with multiple extensions. By the end (and under interview conditions) it got slightly tricky.
I applied online. I interviewed at Susquehanna International Group (New York, NY)
Interview
Just the paper test part, it's quite hard and need to be strong in math. You will need to do dozens of problem-solving math problems. Time is tight, and you need to be time sensitive, or you will miss several questions.
Interview questions [1]
Question 1
Like they just deep explore your resume and your advantages.
I interviewed at Susquehanna International Group (Philadelphia, PA)
Interview
The interview process was smooth, with clear communication. Technical questions were challenging but fair, and interviewers were friendly. Timely updates were provided, but waiting between stages felt a bit long.
