DoorDash

LeetCode-style challenge. Focuses on array sorting and algorithms. No practical build challenge or relevant projects are included. Recommend refreshing algorithm skills beforehand, as some of the logic is not typical for daily engineering needs.

Professional and quick. The interview process included a recruiter call, a technical screen, and an on-site interview with the team. This typically covers standard LeetCode problems, system design, and behavioral questions. The interviewers were in

The interviewer was engaging while I solved the question and provided clues. They asked a hard question, which is not tagged on LeetCode. The question was to find the difference between two trees. I was able to pass 3 out of 4 test cases.