I think the term developer is a bit loaded. If you're properly developing an application, you should know what your dependies are, where you store your data, what are the failure condiditions are, how to prove your appication is actually functioning.

In my world, developers barely understand the programming language or framework they're using and are more interested in using buzzword foo rather than solving the problem at hand or dealing with actually running the systems that solve said problems.

As someone who does both dev and ops jobs, together and seperatly, I think your job will be safe for a very long time.