I'm not sure. From Lambda's website it looks like they are just releasing a program co-developed by Amazon. It's modeled off of an internal training program Amazon has. I didn't see any statements about interviewing or working at Amazon. I think Lambda would brag about a program that was designed to get students jobs at Amazon. I don't think there's any guarantee of a job or interview.
Ahh, so getting devs familiar with Amazon's product offerings.