I applied to DraftKings through a referral. I was scheduled a 30-minute call with a recruiter, which went well, and then a technical interview with an engineer.

I showed up to the interview, and the other engineer was nowhere to be found. After about 15 minutes, I was told that there was a mistake and the engineer is on vacation, so we need to reschedule.

Now, at this point, I feel like they probably rushed to find someone for the interview the next day because once the interview started, after explaining the problem, he proceeded to mute himself, look at another screen, and start eating. I tried to explain my thought process, but it was clear the other engineer was not really listening or interested.

I finally managed to get him to talk by asking a question about the direction I was going, and he gave me a little hint. I finished the technical question 10 minutes early, and then he asked me if there was any way to improve my code.

I immediately realized that I could remove a for loop to bring my runtime down to O(n log n). I explained it to him and said I could make the change right now, but he said no need. Then he asked me about the runtime, and I started analyzing it to show my thought process, but he did not let me finish.

At the end, he highlighted the code, which I assume was to copy and show it to others, even though he did not let me improve it.

The whole interview seemed very unprofessional and strange. It is possible I just got unlucky with my interviewer.

Also, the question is through HackerRank, which is not ideal.

The unfortunate part is that I told the first recruiter that I had applied to other positions within the company, so she made sure that I would be considered for all of them through this one interview, which is a shame based on how it went.

My previous experience was very relevant to the job, and I had heard good things about working there.

The same customer discount question others have mentioned.