I don't personally use it for that purpose, but Scala has some traction in data science. E.g. from a quick Google search:

[1] https://darrenjw.wordpress.com/2013/12/23/scala-as-a-platfor...

[2] https://www.quora.com/Is-learning-Scala-useful-to-a-data-sci...

[3] https://www.safaribooksonline.com/library/view/advanced-anal...