AECOM Environmental Scientist interview questions

I was originally called and asked to go to lunch with two of the project managers. Shortly after, I was invited to the office for a formal interview. The interview lasted a full day. I met with several project managers and went to lunch with two mid level employees. The interview included giving a 20 minute presentation and getting a tour of the labs.

I was interviewed (and later hired) from an HR event called Fantastic Friday. I was invited after a small phone interview with a recruiter, who had seen my resume several times (e.g., recommendations from teacher, applications to AECOM jobs). At the event, I met various people within my office that I may work with. The next day you were asked back for an interview. I was interviewed by a group of three people. Questions ranged from very technical /scientific (e.g., studies at school) to more personal (e.g., leadership skills). I am under the assumption that this type of HR event / interview process is/was rare for AECOM. No one in my group was hired like this past me.