Me too. I was a know-nothing kid from off the street with a newly minted economics degree. And I learned SQL as a Junior DBA and now I’m a Senior Python developer at a startup in Germany. Tutoring from senior level coworkers and home study is how I got to where I’m at. I try to give back where I can too!
I have a residency permit aka a Bleue Karte - which is tied to my employer. I have to maintain a job and it has to pay above 50k euros but it’s good for 5 years.
I don't think German Blue Cards are tied to a specific employer. As far as I know you only have to let the authority know if you change jobs less than a year after getting the card, and beyond that you just need to make above the money limit and you can work anywhere.
