Which level of Java knowledge should I have to get a job in Google?

Question

back-end developer

Answer 1

You must master java and be very good at problem solving!

Answer 2

minimum will be applying your knowledge to solve new problems you haven't met.

Show us your solution to this Google interview question with Java :
https://www.sololearn.com/post/94930/?ref=app

Answer 3

Practice Data structures and algorithms coding problems, Discrete Math, working knowledge of at least one functional programming language, and some software design patterns for best coding practices

Also read books like cracking the coding interview and Get used to white board coding...

Success fellow coder!