Had an hour long technical interview, followed by a six hour on-site interview. One with a senior engineer, a two hour programming exercise on a laptop, an hour lunch, an hour with a hiring manager, and an hour with two more junior developers. The questions were mostly around data structures and algorithms, and some SQL stuff. Staff were courteous, although the question asking seemed to have been more artificial in nature, e.g. the grid path question was asked posed incorrectly (after I looked it up), the junior developers couldn't explain exactly the problem they were asking a solution to. Did not get an offer, the position was actually a step down for me (to development) so my on the spot white board coding was probably not up to their expectations. I guess I'll have to take my years of experience designing enterprise level software to some place else. Also, I hadn't looked for a job in a long time, so my prep work was not complete.