Simone as a feminine or masculine name depends on the language and country. Simone in French is feminine, and in Italian (so a reasonable interpretation here given the last name) is masculine. In the US (and, from what I've seen, other English speaking countries) the name is brought in from French and generally considered feminine (barring being in an Italian community, I've met a couple Simone <Italian last name> men, but often the name becomes Simon after a generation or two in the US for men like how Roberto or Juan will become Robert or John for Spanish-language immigrant families).

https://en.wikipedia.org/wiki/Simone_(given_name)#Simone - Pick any of the Italians off the list and they're almost certainly men, most of the non-Italian Simone's are women.

Of course, it's still safer to look them up if you don't actually know the person in question and want to use he or she.