I am curious, have you run into any of the issues with Julia discussed here [0] (also discussed on HN [1])? Those problems would seem particularly troubling at a hedge fund to me, if you have to question the accuracy of your results after chaining multiple complex models together. Curious about your stance on / experience with correctness issues in Julia.
[0] https://yuri.is/not-julia/
[1] https://news.ycombinator.com/item?id=31396861