Affiliated Engineers, Inc Electrical Designer interview questions

I interviewed for a position in their Seattle office. 1. Phone Screening with Dana the hiring manager. 2. Teams interview with a Senior Engineer from their Seattle office. (This was followed by a series of three in-person interviews over a 90 period at their Seattle office.) 3a. A technical interview that was intended to stump. And it did. 3b. A culture interview with two of their junior engineers to discuss the work environment. 3c. A final interview with the principal engineer of the Seattle office to get a feel for my character. 4. A final phone call to offer feedback on why they decided not to hire me based on my in-person interview.