Applied online, got an email later that day to set up a phone interview. Had phone interview next day and set up a Skype interview for three days later. A few hours after that I got a email to consent to background check and three days more, I got a call with a job offer. Interviews were laid back and not too stressful. My advice is even if you don't know an answer, you must show interest and a willingness and ability to learn.