My idea job would be a combination of Software Engineering 70%, and Operations Engineering 30%.
Operations Engineering is designing, implementing, and supporting of the automated infrastructure which your software components rely on.
In other words the repeatable (idempotent **) plumbing your systems rely on.
API development based on small micro-services using Java 8, AWS, and Python, using Centos Linux.
I have an interest in Infosec which I would like to develop further. Working for an SME is my preference.
** idempotent - no additional effect, regardless of the number of times (repeatedly) called.