I applied through a staffing agency. The process took one week.

• First there was a casual, get-to-know-each-other 30-minute phone interview. The interviewer was super nice and offered lots of information about the company, process, and culture. The questions he asked were mostly about trying to understand my experience and expectations. He asked how I thought previous managers would have rated my performance—an interesting question.
• Next there was an over-the-phone pair coding challenge. The given problem was to do with classifying data based on business rules. The actual question was fairly verbosely worded and had a bunch of domain-specific jargon. I ended up getting flustered and gave up. It wasn't my day. It ended up being tougher for me than I expected.

There was a pair coding challenge to do with classifying data based on business rules.