Vantaggi
This is a terrible place to work. The only Pro I can think of is that they're willing to hire literally anyone.
Svantaggi
AECOM has made the list of "Worst places to work" several years in a row based on their Glassdoor score. It looks like AECOM finally decided to do something about it, by faking votes on Glassdoor. Actually improving the company would be too much work, and might cut into their profit margin. Management doesn't listen to the employees, and despite endless announcements of "New projects" and "AECOM has had its best year ever!" the company is perpetually cutting budgets, salaries, staff, and benefits. I've only been here a year, but my coworkers have all confirmed that the company has always been this way. I'd avoid it if I were you.