Here in my part of the world, we have the definition of "engineer":
includes reporting on, designing, or directing the construction of
Which seems to include management. Eh?
And also implies all the good stuff managers do: planning (objectives, budget, controls, taking credit/giving blame, etc etc).
Which the respondent in the article was in fact doing. Hence, he is acting as an engineer (though I not his company name doesn't imply so).