@tbeason I had similar thoughts. It would be amazing to call Julia functions by an AWS Lambda. Function as a Service.
This thread may be useful:
Avik Sengupta pointed out to me that this had been looked at, however there is a limit on the payload size for lambda functions.
As I remember there are intrinsically supported languages for lambdas. If you want to add your own you must install it - such as Julia. Then you hit the size limit.
That was some time ago - perhaps you coud revisit this,.