Only if the duties and credentials match the engineer entry specifically, and the employment is prearranged and temporary. A job title alone, without matching duties and qualifying credentials, is not sufficient.
Match duties to the engineer entry before assuming eligibility
A process engineer's TN eligibility rests on three separate things lining up: a listed Appendix 2 profession, that profession's own credential rule, and duties that actually match the entry's definition. For engineers, the usual path is a baccalaureate or licentiate degree in engineering, though a provincial or state licence can also satisfy the entry. The harder question in industrial contracting is often not the credential but the duties themselves: turnaround work can blend engineering analysis with field supervision, procurement coordination, and hands-on troubleshooting that looks more like a technologist role.
Before relying on TN, the applicant's actual day-to-day tasks on the assignment should be compared line by line against the engineer entry's own language, and any duties that read as technologist-level work should either be reduced in the role description or the applicant should confirm which entry genuinely fits. Filing under the wrong entry risks a denial that a more careful duty-by-duty comparison would have avoided.