First a talk with HR, then first round technical for 45 minutes, then final round technical consisted of two separate 45 minute interviews. The questions were LC mediums and hards.

After giving a recruiter my resume at a career fair at my university, they sent me an e-mail about two weeks later with a short coding skills test and gave me three days to complete it. After I sent it back, they got back to me within two days to set up a phone interview. I spoke to one of their engineers, who ran me through 3-4 verbal coding challenges (i.e. "How would you program this", with my answers coming as a hybrid of overall strategy and pseudocode). After I answered his questions, he asked briefly about the projects I had listed on my resume, then he asked if I had any questions for him about IXL. I answered all the coding questions and thought I did relatively well, but I got a final e-mail three days later informing me I was not going to receive an offer.