The first round was a technical interview conducted over the phone. I was on the telephone with an interviewer, and we set up a Google Doc that we could both edit in real time.

The interviewer posed a problem. I was expected to write some code that would fulfill the problem's requirements. Then, I was asked to suggest some inputs that could be used to test the code. After that, the interviewer asked how I would modify the code to handle a certain change in the problem.

I made some mistakes in the implementation. A few days later, I received a call from the recruiter stating that the interviewer felt I wasn't experienced enough. However, per company policy, they wouldn't provide any further feedback.

I am not permitted to disclose specifics. Suffice to say, I was given a data table and asked to write code to do certain things with said data. It was mostly straightforward, with a bit of a twist.