I have a unique situation. I graduated from a German University and was working full-time for three years post graduation. During this time I received the EU Blue Card and later the Niederlassungserlaubnis. However after three years that is 2017 I moved to my home country for personal reasons and have been living away from Germany for two years now. I read that the permanent resident card remains valid only for 6 months of living abroad. Is it possible to get the permanent resident status back by any chance. Any help will be appreciated. Also what if I get a job in Germany now.