I applied through their careers section and one of the recruiting team sent an email to me asking details of my career, experience, passion and references to open source projects & stack overflow profile page. I sent the required details and got a call from recruiter for initial screening. It was followed by a phone interview with a Director and then I attended 3 rounds of face to face at their Reston office. Recruiters were very friendly and the entire process completed in a week. Just hours after the interview when I was returning back to my home, I got a call from the recruiter and he detailed about the offer, salary. Not much of negotiations though, they provided the salary what I was looking. A very pleasant interview process. Most of the interview questions were very basic and simple to answer. If you have 3 - 4 years of experience in product development, especially with BIG DATA, it is very easy to clear interview.