I applied via their website. One of their recruiters responded within a couple of days. Next was a 60-minute online multiple-choice quiz covering the basics of C++, C#, and SQL. It had 14 questions, and these could easily be answered in a small fraction of the total time given. I had plenty of time to double- and triple-check my work. Then was a phone interview with their recruiter, in which he asked about some things on my resume and asked me some more technical questions centering on data structures and algorithms. He wasn't a developer himself, but it seemed like their developers had provided these questions. Then were two more phone interviews, each with a different developer on their staff. These were done with a live collabedit.com session where they asked me to develop various algorithms live while on the phone with them.