Learning deeply about computer networking can lead you to be a better software engineer. I argue in favor of that because all the software we produce/use/maintain uses the network to communicate.
Very often we trust stuff we think we know, and computer networking is one of them. The cloud or even “full application platform” (such as k8s) may increase this knowledge gap for good and for bad.
Here are the most useful resources I think might help you understand how computer networking works.
https://iximiuz.com/en/posts/computer-networking-101/
Leandro Moreira 