I worked at Clean Harbors (More than 3 years)
Ability to learn different business segments.
Minimum work week for a salaried employee is 60 hours.
I applied online. The process took 6+ weeks. I interviewed at Clean Harbors (Norwell, MA) in September 2015.
Very great screening process. However, the technical evaluation wasn't something that I was necessarily aware of. Regardless, the evaluation/assessment obviously wasn't an issue, but would've been nice to have had insight into this ahead of time.