Will keep this short and simple.
Someone recently referred to me as a "process engineer". I am a Lean-Six Sigma Black Belt and, to be honest, basically am a process engineer.
I am fully qualified in LSS and very knowledgeable about process analysis/engineering.
However, I was quite taken aback to be described as an "engineer" (of any type), since I don't have an engineering degree. My degree is in Economics. However, I would say that the quantitative aspects of econometrics were very good preparation for the quantitative aspects of process engineering.
I am also fluent in three programming languages (VBA, SQL and R), and someone also asked me (on hearing this), whether I was a software engineer. Again, my immediate response was, "Ha ha - no!" But, again, why not? After all, I know someone whose job title is "software engineer", who is an entirely self-taught programming prodigy with no CS or engineering degree - in fact, no degree at all, only a handful of GCSEs. Yet he is unquestionably a software engineer (and a brilliant one, who I would trust more than an Oxbridge CS grad).
I suppose the question is, was this person right to call me a process engineer? Can I refer to myself as such, despite having no engineering degree? Does having an LSS BB make me a process engineer? And at the end of the day, does it matter?
EDIT - since several people have asked; yes, I am currently employed in a role which would fit most people's definitions of a "process engineering" role - although, I would more typically refer to myself as a "continuous improvement professional".