In common parlance they will call themselves software or network engineers, but their official title will be something else, a title my company uses is "senior software engineering 1/2/3" the -ing considered enough to change it. It's usually not a big deal unless you falsely represent yourself like this guy is doing or you're going through a legal process (I got a US work visa and the lawyers stressed that I should not refer to myself as an engineer during any immigration process unless I really was one for instance).