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Unfortunately the software industry (at least in the US) has applied the term "engineer" basically across the board to software developers instead of only for properly trained and licensed engineers as in other fields (civil engineering, mechanical engineering, etc). Part of this is due to a lack of a formal software engineering licensing system, but the desire for fancy titles is certainly something that played a role in this.

My understanding is that other countries, like Canada, do have strict requirements for the use of the term "engineer", but unfortunately that ship appears to have sailed in the US due to inertia and the intransigence of Silicon Valley-type companies.