As someone who's seeing plenty of Scala uptake around me that's a rather surprising claim with no supporting evidence. These days I'm writing 90+% of my code at work in Scala.

Indeed.com job data suggests that the answer to your suggestion is an obvious "No": http://www.indeed.com/jobtrends/scala.html

This graph shows that Scala grew from 0.02% market share to 0.08% in the last four years. The fact that it's at 0.08% after more than ten years in existence should be a concern for anyone interested in learning it.

For comparison Ruby is just over 0.3% and has been flat for four years. It's the overall job market, not just programming jobs so all percentages will be low.

Sure, so this tells us there are about 20 times as many Ruby jobs than Scala ones.

0.3 / 0.08 = 3.75

That's less that 4x as many Ruby jobs as Scala ones.

I have never received so many scala job offers like in the last 6 months. The other day a recruiter contacted me because he needs to fill 60 Scala roles! As someone else stated, it's mostly financial firms that are investing heavily in Scala (at least, in my experience).

Why do you think so? Spark is booming, and Scala is the most used language for Spark applications.

Lots of other very active open source projects (e.g. Kafka, Akka, Mesos) are written in Scala.

What makes you think that?

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