And even though I don't have have a degree or any certifications...

You must be really good! That's quite impressive, especially given how many jobs degree-gate just to filter applications so HR doesn't have to work too hard.

My job is solving business problems.

Sometimes I wish I got dopamine for solving business problems. I'd probably find myself in a lot more situations where people are willing to hand me money. XD

But yeah, software engineering is totally a thing. Like you said, it's just somebody (hopefully) carefully creating tools to solve particular problems.