I applied on the website and had a brief call with a recruiter and then a tech call with a data science team leader. When they asked me about approaches to analyzing a dataset and suggested methods that I've had success with, I got the feeling I hadn't given the answers. Ultimatly, the interviewer lead me to an answer he wanted, which I can best summarize as the only the first 2 weeks of Andrew Ng's Coursera Machine Learning course (great course, go through the whole thing!). It was the type of tech interview that left me wondering if I should have dumbed down my answers.