What is the definition of “Engineer” in “Data Engineer” and “Machine Learning Engineer”? And what is the difference with “Scientist”. I’m not from the US and i

What is the definition of “Engineer” in “Data Engineer” and “Machine Learning Engineer”? And what is the difference with “Scientist”. I’m not from the US and in my country, “(civil) Engineer” is a legally protected title https://en.m.wikipedia.org/wiki/Civil_engineer#Belgium https://en.m.wikipedia.org/wiki/Civil_engineer#Belgium