I have seen the graphs and numbers, but I'd like to know what it looks like from the perspective of a professional Ruby or Python developer who is actively employed and works with the supply and demand on a daily basis.
Please, do not feel the need to point out that JavaScript is quite a bit different than Ruby and Python. I am not asking how the languages relate, only how the job markets compare.
Since you want subjective view instead of facts: I see Ruby jobs all the time, though always by the same handful of companies. I see Python jobs all the time, though its always some minor sets of components/services written in it. I see Javascript jobs all the time. Hell, all those Ruby/Python companies also hire Javascript developers.
Bottom line, you can find work in any of those languages easily. Though, from my (very subjective) perspective, Ruby isn't as attractive as it once was.
I work in a non tech driven city and I'll say a lot of the academic based companies lean towards python. Most likely because it's the language they were taught on in school. I will say that a lot of the more hungry companies that are a bit more lean use node. I know a handful that use clojurescript and the rest are either php and ruby with some sort of npm stack controlling the front end.
I could imagine sf to be a lot more node heavy though given that they take the technical stack a bit more serious than other companies. Uber for instance uses node, but the job available in my area required a python understanding. I can see it trickle into more jobs as the education of the benefits of node bubble up to management and the availability of a javascript workforce becomes more present.
It might be hard to compare. What metric would you want to see for your comparison? Also, do you only want employed or also self-employed? Could you further explain what you mean with "works with the supply and demand on a daily basis"? The way i read this, many people hired in many a business doing their coding never has to do with this. That's mostly up to sales. But for self-employed developers this is just business.
Jan Vladimir Mostert
Idea Incubator
Depends on where you live in the world