What area of ​​IT to go into if you are a polyglot, and what languages ​​are in demand?

Question

Career in IT

Let's suppose that I know another language or several other than English.
In what area of ​​IT can I apply them without replacing a managerial position?
So far, only technical support comes to mind (I work in it myself), localizers and technical writers.
Although, about the support: basically the support, based in Russia, offers only English-language support for foreigners. There are exceptions (in the same Acronis multilingual support), but it's more like an exception companies.
I didn’t work as a techpis and localizer, so I don’t know the kitchen from the inside. And I'm afraid that there are no prospects, except for the head of the department, as well as the possibility of decent employment in which case. Is it possible to translate documentation remotely, but translators are now a dime a dozen and this is not where you should meddle.
But maybe my horizons in IT are narrow and there are many professions (or companies) where many languages ​​are in demand?
The second question follows from this - what languages ​​are in demand, except for English? It seems to me that these are primarily the languages ​​of Southeast and South Asia: Chinese, Korean, Japanese, Hindi; in general, where there are a lot of people, poor knowledge of foreign languages ​​(they say that in Japan it is oddly difficult with this) and a lot of our colleagues :) But maybe you should also know Spanish - it is considered the second universal after English, hello to Latin America.
I understand German and French basicly, but, frankly, I have little idea how to use them in IT work (except for reading the awk manual in German and a little correspondence with the client, I didn’t practice in any way).
If you can still remember French-speaking Africa with French (the IT market is so-so, of course, but I have come across clients), then German speakers in the IT field mostly communicate well in English. And I can’t imagine not native German speakers who don’t know other languages.
It is clear that knowledge of any language is not superfluous, as well as superfluous knowledge. And we can't wear them behind our backs.
But I think the subject matter is interesting enough to be discussed. In our world, striving for globalization, the issue of communication is a matter of life after all. And the task of the engine of globalization - information technology - is to make this globalization convenient and cultural.

Answer 1

as_is , it would be nice if you could improve your Russian.
Statistics of demand for languages ​​according to the bulletin board in the City of Translators.

Answer 2

We develop software for a French-speaking audience, all our QA engineers, analysts and other NON-programmers know French - this is the entry threshold. There are few of us, but we exist) Another thing is that, in my opinion, you don’t really understand what you want to do and where to develop, and this problem is more complicated)