two interviews, each with 3 people from different offices. Very warm and friendly behavior and clear questions about my interests, background and career goals. Asked me to explain 1-2 projects in more details.

Will be interviewed by Associate VP's and/or Senior Transportation Engineers. They ask anything you put in your resume and about your experience. Depending on interview, you might get interviewed by 6 different people - in two batches or three. If you get lucky, you will be interviewed by one of the higher ups too (Regional Manager/Vice President).