I've applied online for SE III, had an 1 hour phone screen interview followed by onsite interviews (for 2 hours). I was asked to write code for few problems followed by some design questions in the first hour. In the next session, was asked more specific questions related to the position I've applied for and some general architectural and design questions. Though I've answered most of the questions (rightly, to my knowledge), I couldn't complete one of the coding questions and I believe this resulted in an unfavorable outcome. Overall, it was a positive interview experience