Technically, it is not illegal.
> There are several places where the use of engineer is often used improperly. They include:
Software or data engineer: Unless someone is licensed with a provincial or territorial engineering regulator, they cannot use the title engineer, or any variation. This applies even if the title is assigned by the employer. Alternative titles can include:
- Data analyst
- Data scientist
- Software specialist
- Software technician
- Data technologist
- Data manager
- Data technical expert