Here‘s how I did it (pretty much accidentally), but found out it‘s a great platform to start from: I stumbled into an ill-defined semi-technical role in a growing company with a great boss. I was a technical ad creative support specialist, and the role was ripe for automation. Within a year I had automated my frustratingly boring job away completely and was promoted to engineering as the guy with the ability to „make stuff happen“. The road was very much uphill from there, just picked up the skills as needed on the way, showed up, took additional responsibility when nobody else did.
I‘m CTO of a Series C stage scale-up by now.
There are literally hundreds of such jobs out there you can‘t really train for with obscure names, just go browse some listings from companies with a good culture and a way up. Show up with a technical enough mindset and an attitude of making things happen and you‘ll get that job.
If you just go a bit above and beyond of what‘s expected and ask smart people smart questions, you’ll kill it in no time.
Good luck!