The National Society of Professional Engineers has managed to claim "Professional Engineer", "PE", and "EIT". They also have claim over "engineer" when used as

The National Society of Professional Engineers has managed to claim "Professional Engineer", "PE", and "EIT". They also have claim over "engineer" when used as self-promotion as a business or an independent contractor. However, they weren't able to have the claim on it as a job title stick. So, assuming you don't have PE quals: your consulting firm could not be gwerbret Engineering. Your job title at Microfang could be Software Development Engineer.