Maybe times have changed but up to 16 years ago I worked with several engineers in Italy who are proud have earned bachelors and masters degree in engineering or aerospace engineering from the USA. I do not know if they had to take additional Italian exams. Some engineers used something like "Ing D" (although they explained this was not a doctorate) on their business cards. The engineers I worked with used common english language reference books which certainly helped during design and development activity. Also congratulations on your excellent English.