I applied online. The process took 2 weeks. I interviewed at Susquehanna International Group (Dublin, Dublin) in Jan 2019
Interview
Two questions that were asked to do on codility as mentioned in the section below.
And after that i had an online call with two hiring managers in Dublin office. They scanned through my CV and then asked few questions as
i) Explain your best project so far,
ii) What was the most difficult time during your recent job.
iii) Python based coding question: write a program that would print the smallest number in an array. further what if you got the temperatures in the array how would you handle different temperatures.
iv) OOD based question: Design software class hierarchy for a Zoo Animations where you have to display animals.
v) How would you handle a request from marketing where you are given with the bunch of web pages and you have to return back with those pages that have phone numbers in them.
Quite average experience with the interview, the person for C# team was bit too sharp and wasn't much satisfied with my answers. I would have handled his questions better in a face to face interview rather than on a phone call. I would suggest not to have a phone call in Dublin office but rather go for f2f onsite.
Interview questions [1]
Question 1
Implementing a Stack with all its method like push() pop() top() etc with a language of your choice. I did in C# as job was for C#. The input numbers should be 12 bit integer numbers and all the exceptions should be handled properly. 1 hour for this
I interviewed at Susquehanna International Group (Philadelphia, PA) in Jun 2026
Interview
- initial phone screen
- technical round (follow up with recruiter next day)
- technical + design round (pre and post interview calls with recruiter)
- in-person fit/experience talks (pre and post interview calls with recruiter)
I realize this sounds like a ton of meetings (and it is), but I appreciated the straightforwardness of the process and the amount of feedback I got, which I think is rare among interviews.
Interview questions [1]
Question 1
They asked me to optimize an existing solution to a coding problem.
I applied through a recruiter. I interviewed at Susquehanna International Group (Dublin, Dublin)
Interview
Was pretty easy, 1 round of phone screen interview + 2 - 4 hours of onsite final round. Onsite is scheduled to take place in person in the office.
Interviews were pleasant to talk good and experience was quite good.
I interviewed at Susquehanna International Group in May 2026
Interview
recruiter call - first tech interview, codesignal programming, let u program for 30mins and the interviewer will come back - second tech virtual onsite, OOD + another live coding round, interviewer stays for the duration of OOD and values interaction, live coding is a similar version of prev round - final round onsite team fit, back to back resume deep dive + bq with different engineers / managers. I enjoyed talking to all the engineers and they were genuine and helpful
Interview questions [3]
Question 1
movie sorting problem, different genres search by year