Then again... the work I do is what universities currently consider "IT Systems Engineering". My work integrates Windows, Linux, FreeBSD, OS X, NetApp, VMware and Citrix platforms as well as covering security, development, data archiving, and a host of other tasks. My skills extend beyond those areas, but those are the ones I use in my day job.
My degree, however, is physics.
Well, that's typical of systems engineers/whatever-the-heck-you-want-to-call-us for those of us who remember 300 baud, FidoNet and (later) Bitnet email accounts. Ever typed an assembler into an Apple
When I started in IT there was NO SUCH THING as a degree in IT Systems Engineering. Does that mean I'm not an IT Systems Engineer? We don't have an official job title of "systems engineer". My job title is "Advanced Systems Specialist" at my workplace. There's not an official "Systems Engineer" title at all. Does that mean this HUGE university infrastructure was built without any engineers/engineering? Really?
My point: I find there are plenty of people that have titles they are "allowed" to use but to which they fall far, far short. I also know brilliant people that run circles around those folks who have no "official" title (some have no degree at all). My feeling: use whatever title *actually* describes what you do and are capable of doing (and I'm sorry if the law prevents you from doing so where you live). Using a lesser title is selling yourself short. Using a greater title is setting yourself up for failure, firing, and ridicule.
Be honest and accurate about your capabilities. No more. No less.