What does an Android developer do?

Question

Android

As far as I understand, there is no complex business logic in applications, and the main work is done on servers. So Android development is mostly front-end and networking as a client?

Answer 1

There are different applications, maybe a simple ui that communicates with the server via rest api, then yes, everything is done on the servers. But there are times when logic is added to the application and the database

Answer 2

As far as I understand, there is no complex business logic in applications

you have a strange idea about applications
in a certain number of applications, yes, but obviously not in all, and not even in the majority (in my experience). Many applications work quietly without an Internet connection.
Well, based on your data taken from the ceiling, then yes. It can also be assumed that those who are in T-shirts are girls, and then only girls are involved in Android development. How does that work out.

Answer 3

I would say that android developer is a collective concept ...
1) it all depends on the programming language. Depending on what you will write on... Java, Kotlin, C#, Javascript (React, etc.).
2) If the application requires setting up a server, working with REST, etc., then of course you need to be able to work with server software, be able to create REST applications, etc.
3) if this is gamedev, then this is a separate undertaking.
Applications can communicate with the server through the rest api, or they can work autonomously. Everything is relative. It is necessary to consider a specific problem and specific methods for solving it.