I have been working at adidas as a contractor (Less than a year)
The people you work with are all very welcoming and knowledgeable.
Resources are a little slim, so workload bandwidth can be tight at times
I applied online. The process took 5 days. I interviewed at adidas (Portland, OR) in April 2013.
Quick, easy, straight-forward. Filled out online application, took screening test (basic math, common sense) was contacted for interview. Interview was 1:1, asked easy questions, interested in me as a person. Was offered job on the spot.