I applied online and heard back a few days later. I was then given a link to a code challenge. The challenge was fun, and I was able to complete it on time (you have three hours to finish).

The next day, someone from HR reached out, saying they were forwarding me to a recruiter. I had to wait a week because the recruiter they forwarded me to was about to leave for vacation.

I had a call with the recruiter, which mostly consisted of discussing my previous work history. A few days later, I received an email saying "thanks, but no thanks." I'm not sure why.

I responded to the email, asking where I might have "drawn a red flag." It's been a week, and I still haven't received an answer.

I have over four years of experience and completed the code challenge, but the recruiter apparently decided I wasn't good enough to come onsite.

Make a call to a given endpoint to get a bunch of dates.

Sort the dates.

Send the new sort to a different endpoint.

Their response message does not give any hints on why your answer is not right, so make sure to review your code carefully.