I work and live in Germany.
I am receiving an offer from another employer in Germany.
I am an IT Specialist, and this offer is within IT Field.
However I don't hold a blue card, because I don't satisfy all requirements.
How should I change employers in this case? Is it just a matter of going to ausladerbehorde(Immigration Office) with a new working contract?
How can I start working while waiting for the approval? If this is even possible.