I applied in-person. The process took 6 weeks. I interviewed at ADM in Dec 2010
Interview
Most important is to be early and if you are interviewing for a technical job they will give you a page long quiz to make sure you know what you're talking about.
Interview questions [1]
Question 1
Explain a situation where you had to come up with a solution for something that was outside the box(need a technical or mechanical example) and implemented it in the field.