I applied through an employee referral. The process took 2 weeks. I interviewed at OfferUp (Bellevue, WA) in Nov 2016
Interview
Engineering hiring involves 5 rounds of interview with one round focussed on assessing culture fit. Rest of the rounds involve assessing problem solving, design, coding skills. The whole interview process was clearly articulated by the recruiter so I was better prepared.
Interview questions [1]
Question 1
NDA would not allow me to specify the actual interview questions. But I would suggest you to prepare well from Cracking the coding interview