Well, mathematician or engineer? Perhaps both, or none.
I graduated in Mechanical Engineering at the University of Udine in 1998. After a couple of years spent in industry, I got back to university to feed my aged passion for maths. And I ended-up with a PhD in Computational Mathematics at the University of Padua in 2004.
The rest is the typical path of an italian academician across the 20th century. A few years of grants here and there (Udine, Trieste and Trento), a permanent position as assistant professor (“ricercatore”) in Udine since 2007 and, eventually, as associate professor since 2016.