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That's one of those decades-long debates that continues. Is CS actually "science"? Are developers actually "engineers"? Is a person in charge of a Kanban board an "architect"?

There are absolutely computer science jobs, but in general, a casual distinction would be what side of the research/implement line you fall (though in truth, it's probably more of a 2D graph than a hard line).

Computer Science is the study of computing

Building software is just one application of computer science

It's a bit like the difference between someone who is a psychologist helping people in therapy, and a psychologist who studies psychology in a lab. They require similar educations but they are very different professions

Some CS departments are known to be "theory" heavy whereas others are more "applied" heavy. In theory heavy departments many students do not get exposed to the day-to-day details of writing perfomant code and they have the feel of being an offshoot of the math department as opposed to engineering.