Is it necessary to be fluent in English as an Android developer?

Question

Android

Is it necessary to be fluent in English as an Android developer?

Answer 1

If you find answers to your questions in those languages ​​that you know - not necessarily.

Answer 2

Yes

Answer 3

No, it is not necessary to know perfectly, an upper intermediate level will be enough (to be able to ask questions on SO).
If your level is below pre-intermediate (I think that this is the minimum level for comfortable reading the documentation), then you will not be able to perform your main duties. Therefore, I will not lie if I say that it is necessary to know the language at this level.

Answer 4

It depends on what and for whom you are going to write. If for the local, read the Russian-speaking market, then yes, communications are not needed, but you won’t earn much money here either.
For outsourcing abroad without the ability to communicate by voice - there is nothing to catch