What is the language for the backend?

Question

Backend

Hello. I am a mobile developer, and often a client (mobile phone) needs a backend with minimal requirements. I got the data, saved it, made a selection from the database and gave it to the client.
I decided to write the backing myself, because the specifics of the mobile backing are not much different (at least those who wrote before wrote the barn and not the back).
Actually a question of language for a backing.
Puff, JS, well, I just didn’t like the syntax, and my attempts to learn them ended up being one irritation from the language.
Java, C#, in my opinion, they are more for interprais projects, I don’t know how expedient to learn some of them for a simple back-end.
The python remained and chop with them until I don’t know what nuances ...
Maybe one of you will tell me or give some parting words, it is clear that you write in some kind of language that you will praise. It would be interesting especially the opinion of those who wrote / writes backing in different languages.
Thanks to all!

Answer 1

Lots of opinions
Try Golang
The language is lightweight, lots of stuff out of the box. It is possible to write in C, if necessary.
Just my opinion.

Answer 2

1) Any language that you know better personally. Or knows the one to whom you entrust this development.
2) In general, if the requirements for the backend are minimal, then they may well arrange ready-made "backend services" without programming the backend at all. For example, Google Firebase, etc.
3) I don’t understand what the problem is at all - after all, on what you are developing the mobile application itself. It is quite possible to use the same language on the backend.