Hi All ,I just started my career as backend engineer, what all things should I learn and where can I find best advance java documentation/ course. Also I believe in learning through application and project. where can I search for open source projects to which I can contribute and learn.🙂 Thanks

Can you name a few libraries for context / a very summarized idea of what you have experience with?

So, I have worked with spring framework mainly spring boot.

Well, for some interesting projects: https://grpc.io https://akka.io and of course https://kubernetes.io Look around for relevant articles on the internet by fellow engineers, I suppose. Sorry I don't really think I've got much to go on.