How did you relocate to Germany?

I am from the US/Greece, with a bachelors and hoping to pursue a masters later on. I Was thinking of relocating to Germany.

For anyone’s who moved, what was the process like? Did you get a job and get sponsored? Did you enroll in schools and get a work authorization? how to transition into a perm resident? what industry are you in? would like to hear more about the work and career process not so much social aspects.

details would be greatly!!! appreciated:)