Had two phone screens - one with hiring manager and another with Dev. on the team. Most questions were technical but not very difficult (Ex. - find out if linked list has a loop; Find all anagrams of a word in the dictionary, etc). A week after last phone screen they flew me down to Bellevue for an in-person interview. There were 6 rounds total - 4 technical and 2 non-technical. Most questions were of average difficulty (Design algorithm to split linked list into two smaller lists such that first list contains only odd elements and second list only even elements of original linked list; Design data structures for game of life, etc).