Groupon Software Engineer interview experience

Sometimes the process was described as a couple of rounds, but in my experience it ended up spanning weeks, with long gaps where I had to keep track of whether anything was moving forward.

My format included a recruiter screen and then a mix of technical rounds—coding problems, data structures and algorithms, and sometimes database questions—plus behavioral conversations with different interviewers. At one point I was given a coding task focused on reservation-style thinking with concurrency considerations, including how to lock seats for a short window and what databases might fit each