Initial communication was through a recruiter, who reached out unprompted via LinkedIn.

After chatting with the recruiter briefly over the phone, she quickly set me up for a phone interview, which was not that difficult or unexpected.

This was followed by a half-day on-site interview. It involved lunch, followed by meeting with four separate employees for 45-60 minutes each.

Interviews were back-to-back, and the last interviewer escorted me back to the lobby.

The initial question, writing a function to calculate a square root, ended up being the most difficult because it threw me off. I knew there was a good iterative method for doing so, but could not recall Newton's method in the moment.

I sadly let this nagging thought get in the way of my ability to work through the problem. My failure to perform well on that question set a negative tone for the rest of the interview, since each interviewer after the first can see notes from the previous interviewers.