Interview 1 with the recruiter. This was the usual pitch about the company and my current background. After the interview, the recruiter did not get back to me for a really long time, even after email follow-ups.

Interview 2 with a VP. The VP was late and asked to reschedule at the very last minute. This interview involved the usual fit questions and more corporate selling of the company.

Interview 3 was a take-home assignment with a 24-hour limit. I completed it diligently and received an extremely impersonal reject email a few days later, with no proper explanation. The question was quite simple, and I am fairly confident that I provided a good solution, along with sufficient test cases and design.

I expected at least a follow-up call to receive proper feedback on the take-home assignment.

They kept mentioning that "people come first" at Affirm, but this was clearly lacking.

My honest advice: Refuse to do any take-home tests from them. It's a waste of everyone's time!

Problem on knapsack/optimization programming for streaming data.