Engineering is two things:
1. Applied physics - Software is immediately disqualified. Symbols have no physics.
2. Ethics - Lives and livelihoods depend on you getting it right. Software people want to be disqualified because that stuff is so boring, but this is becoming a more serious issue with every passing day.
That might vary by countries but in France with have an official "engineering degree" (diplome d'ingénieur) which is also a master's degree, and most software developers have this.
So most software developers in France are absolutely software engineers.
Software is applied mathematics, though
And still not applied physics
> Software is immediately disqualified. Symbols have no physics.
Many physical processes are controlled by software.