I've done two stages, interview with HR and with Hiring manager. Both took a bit more than an hour. They look for people with a lot of professional background and experience for pretty junior positions. The salary range is staying on the junior-mid position level, even though the experience related to the position required a lot of senior skills. A bit snobbish attitude, the product itself is awesome, but they are not saving the world. Questions are pretty easy, do a lot of prior research of the company. Professional experience questions about your CV and a lot of personality check.