> As a code developer ... You don't have to deal with infra or packaging/deployment

This is false (and wrong). As a software engineer, you must understand and own what you do end-to-end, including:

* how to write your code

* software/hardware that your code relies on (databases, k8s, aws, whatever)

* protocols your software uses for communication

* 3rd party libraries that your software depends on

* how to build and deploy your software and environment for it (bare metal, clouds, mobile app stores - whatever necessary)

* setup testing + write tests for all of the above

* setup monitoring + monitor all of the above

at any company, at any scale.