I applied online. The process took 3 weeks. I interviewed at CME Group (Chicago, IL) in Jan 2019
Interview
Two Step Interview Process. First a phone interview with a basic coding challenge. Then they brought me out to Chicago for a full day. This included a more advance coding challenge in Java, a systems design question, lunch and a tour of the building.
One call with recruiter who asked very basic questions but told me about hte position. Hour zoom with hiring manager with many technical questions. It was tough to understand with his hard accent. Another in-person meeting with two managers.
phone call oa and then a take home and finally a superday with sys design as well as some medium leetcode problems. overall i would say pretty standard for software engineers. also behavioral call with hr
I applied through an employee referral. I interviewed at CME Group (Belfast, Northern Ireland) in Nov 2025
Interview
There was one assessment day that consisted of a group interview and a individual technical & software skills interview.
Everyone was really friendly and helpful throughout the entire process, with the interviewers doing a great job guiding you so you show the full extent of your knowledge on topics.