I was contacted by a recruiter and scheduled a phone screen at my convenience.

Apparently, they hire with no specific job in mind, and you are to find a specific role after being deemed worthy.

The phone screen happened on time, and the interviewer was polite. This is a very low bar, I realize, but after a few interviews at companies where these basic logistics were badly screwed up, this was sadly a pleasant surprise.

I was asked two coding/algorithm questions, of which you will find many examples on online sites.

I was specifically asked about BST traversal (easy) and one puzzle/algorithm (harder) question.

There was a focus on running time.