How to identify yourself on a CV
Technically mentioning DevOps might be wrong (the question you referenced is also subject to opinions). 

But it can also be seen as clarifying/disambiguating - the term is widely used presently on the job market, not only according to your salary reference but also from the job ads themselves - see What is the difference between Sysadmin and DevOps Engineer?.

You'd only speak the recruiters' language - which is IMHO more important from the communication perspective than potentially being technically correct.

Language and culture are fluid - something wrong may become de-facto correct and vice-versa.