I received an email from a recruiter following an employee referral.

I then scheduled a call with the recruiter for a general phone screen. A week later, I had a technical phone round with a senior software engineer. The recruiter was rude and said, "You're an employee referral, which is why you're being put through the interview process; otherwise, I would have rejected you."

Here's what the interview covered:

• One general coding question
• Resume review and questions on some of the projects
• General data mining questions
• One machine learning question to see how you think about it (question had no right or wrong answer)