Found out about the opening and the company through a recruiter. First was a phone interview with the head of data. Next was final on-site interview. I got the regular database and algorithm questions. I was able to answer all of them and had a few minutes to spare. Recruiter also told me the interview went well and they're likely to extend an offer.

A few days later, recruiter tells me I would need to meet with the new co-head on-site one more time and this would just be a regular chat. I agreed and I thought it went well. A few days later, got a call from the recruiter. He said the meeting went well but they've decided to look for another team for me. A few weeks passed and I had other offers on the table, so I reached out one more time and nothing. I felt like this was a waste of time.

Q: Find the maximum sum in an array