I am a Medical Laboratory Technologist

Hello saber.raofey thank you for reaching out to us.
Firstly, you can check on the database, anabin, if you degree and your university are listed and already acknowledged. Only with an acknowledged degree you will be considered as a skilled worker and be able to apply for a work visa. You can find more information on our website about acknowledgement of foreigns degrees. There are some position, like doctors, who are counted as a regulated profession. Depending on what your position and expertise is, you might will need an additional acknowledgment. If you would like to share, I can haver a look for you. Alternatively, you can check it out on this website: https://www.anerkennung-in-deutschland.de/en/interest/finder/profession
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The easiest way is to apply from abroad for jobs and receive a job offer/contract. On our website, you might find some useful information about job hunting and the application process in Germany. Along with an acknowleged degree and a job offer, you can apply for a work permit at the responsible German embassy. You can find the checklist here: https://afghanistan.diplo.de/blob/2162330/0334107c8fb57d81e8bead64ba195… Unfortunately the German embassy/consulate in Afghanistan are closed. You can get on the waiting list through the website of the German embassy in Kabul: https://service2.diplo.de/rktermin/extern/choose_category.do?locationCo… Through this appointment application system you can choose Islamabad or New Dheli to submit your documents. Currently, it seems to take about 6 months to receive an appointment.
Please let me know if you have further questions.