I applied through a recruiter. The process took 2 weeks. I interviewed at Susquehanna International Group (Dublin, Dublin) in Jul 2022
Interview
Took around 2 weeks, applied for C++ job.
3 steps:
- Hackerrank style interview
- Resume + C++ questions
- Coding onsite
Interviewers were really nice, helpful. The first two steps were average difficulty, but last one was not as expected. Most of company are using algorithm style question but not this time. I won't say it was "hard" since it depends of your experience on C++.
Interview questions [1]
Question 1
- Data processing with read from file
- Generic C++ question (what is a vector, difference between vector and array, memory management...)
- Thread implementation debugging
- std::shared_ptr implementation from scratch
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