In my country (France), being an engineer (ingénieur, in French) is regulated but tied to a particular degree (which must be approved by the Commission des titres d'ingénieur), and as such I am legally a software engineer.
In France, it is somewhat more complicated.
The title "ingénieur" is not regulated, it is a job title and anyone can have it if the position calls for it.
What is regulated however is the engineering degree ("diplôme d'ingénieur"), only some schools recognized by the state ("grandes écoles") can deliver it. It gives you the right to call yourself "ingénieur diplômé". Internationally, it counts as a masters degree.
As far as I know, it is a french system with no equivalent in other countries, and I don't know of any foreign school, even among the most prestigious that can deliver a "diplôme d'ingénieur".
Administratively, regulated professions (including doctors, lawyers, architects, etc... but not engineers in general) are regulated by the ministry of work, while the engineering degree is regulated by the ministry of education.
I am well aware of all that because my school (EPITA) went through the process of getting approval from the "Commission des Titres d'Ingénieur" while I was studying there so it was a pretty hot topic. The result is that I don't have a "diplôme d'ingénieur" (but I have a "degree in engineering", equivalent to a regular masters degree, love the play on words) but the next promotions do. My job title is still "engineer" in any case.
Same in Poland and I imagine all of other countries in Europe which follow Bologna Process.
Same here in Poland. I believe the equivalent term in English is "Bachelor of Engineering". Four years instead of the regular three to obtain a typical bachelor's degree.
I studied at a technical university at its faculty of electrical engineering, but those who study at a "normal" university indeed go through the usual three years and are not engineers.
I guess the main difference is that I learned about analog circuits, semiconductors and all that, while those other guys didn't.
I don't have any special professional certificates, though I could optionally enroll on a course allowing me to work with voltages up to 1000V.