I worked in Germany for 4 years on Blue Card, paying taxes etc, didn't get PR (Niederlassungserlaubnis), found new job in UK, de-registered and left the country for 2 years. Blue Card naturally expired as >5years passed since.
Now wanna return to Germany, I already found a job there and can get work visa.
As I've already contributed taxes for 33 months, can I immediately apply for PR/Niederlassungserlaubnis after I come to Germany on new work visa?