There where an article recently regarding Humios use of Elm: https://www.humio.com/whats-new/blog/why-we-chose-elm-for-hu...

Using job postings isn't really that useful. If they where any indication then the two only language in existence would be Java and C#. That depends on where you live of cause. E.g. there are plenty of Python jobs around where I live, but they aren't frequently posted on the regular job sites. I'd suspect that Elm jobs are posted where Elm developers are to be found.