Groupon Software Engineer interview experience

I remember starting with a technical first round focused on data structures and algorithms, then moving into additional technical interviews that covered databases and Unix/Linux concepts. After that came a hiring-manager round, and later a bar-raiser-style interview that was framed as the hardest one and leaned mostly behavioral.

There was also a very concrete “full-day” texture to it: multiple one-hour rounds, and at least once the format included a HackerRank-style test followed by discussion of my solutions, then another problem-solving round. I saw system design come up too—topics like