Although I'm not sure what you mean by "deep learning", you can take a look at Spark: https://spark.apache.org/mllib/

As a bonus, it IS Python (numpy) in the background mixed with Scala. So you can use each language where they make the most sense - Python for the maths number crunching and Scala for the business logic and the architecture.

I think Spark also has .net bindings (so you can also tick F# on that list...).