Extremely Professional. HR was very nice. The following things happened to lead to an offer: 1. Phone Background conversation with HR in Dallas 2. Zoom(like skype but can see computer screen) interview with two current employees. This consisted of a quick multiple choice test about basic web dev and angularjs, then an approx. 30min. web development test. I built a very basic shopping app right in front of them. 3. An IQ like timed test, a character test, and another intelligence test with algebra and string resemblance stuff. This all took roughly 10 days and on came the offer!