I applied through other source. The process took 5 months. I interviewed at Six Flags (Gurnee, IL) in Aug 2012
Interview
Getting hired was a total pain in the butt. Applied three times, no response. Tried calling, could never get through to HR, even tried Facebooking a Six Flag Park Exec to get anyone's attention, nothing worked. Finally after almost 6 months finally got through to HR, they immediately transferred me to the First Aid/Safety Dept Mgr and finally got an interview.
I applied online. The process took 1+ week. I interviewed at Six Flags (Austell, GA) in Mar 2013
Interview
They do a drug test, check all your certifications, meet with you, make your job description clear, and ask if you have any questions. Then if they need you and you did well they give you a call back to offer you a job and you start a training class, fill out paperwork then you get your schedule.