I was recruited after on campus interviews which were a series of problems that I coded on paper. I was told to do some engineering challenges on their website, so I did, and I contacted them afterward. Got flown out to Boston two weeks later for an onsite. Four stage interview, with questions that seemed to vary greatly from interviewer to interviewer. Code on whiteboard questions only, no system architecture. Heard back in a week.

Good, although, sometimes struggling in providing you information about when interview will be leaving you wondering. Technical interview was good, I went into in uncertain as I wasn't sure about if I could solve a challenge. Recruiter was very nice and informative as well. Gutted to not progress onto next stages but they layout whole process for you and provide with you with feedback even if you fail the technical interview. I hope to re-apply soon when I become more confident with approaching technical assessments cause these do not correlate with your day to day duties as SE.