I applied online. The process took 2 weeks. I interviewed at Susquehanna International Group (Bala Cynwyd, PA) in Dec 2023
Interview
The interview was broken up into two parts:
1. A coding session with two team leads, where the first part consisted of discussing the problem and possible solutions, the next consisted of independently coding the solution (30 minutes) and the last part involved discussing the outcome based on the provided unit tests.
2. A system design session with two team leads
Interview questions [1]
Question 1
Coding session:
Write a method which returns stock ticker value based on a company name found in a string of text which contains random words besides the company name. The most critical part is that the method must be optimized for performance under the assumption that there could be millions of companies to search through
System Design session:
Design a point of sale system which accepts coupons and write the associated code with minimal implementation details
Overall process is fine. The main problem they didn't respond to my email after the final interview.
- interview with Hiring manager about experience related to the job
- on site interview with several python questions and simple leetcode task + system design task
I applied through a recruiter. I interviewed at Susquehanna International Group (Dublin, Dublin) in Jul 2025
Interview
The online stages were pretty simple given my seniority (15+), and the online interview was nice. You have to implement tickers lookup by the headline, mentioning the company names. As fast as possible of course.
