Does anyone know of a Scala SDK for Amazon Web Services? I am particularly interested in the EMR jobs.
Take a look at AWScala (it's a simple wrapper on top of AWS SDK for Java):
https://github.com/seratch/AWScala
[UPDATE from 04/07/2015]: Another very promising library from @dwhjames:
Asynchronous Scala Clients for Amazon Web Services https://dwhjames.github.io/aws-wrap/