Work and Study in Germany

Welcome to the forum!
What will you work as in Germany - and do you already have a job offer and speak German?
If not, it might be quite difficult or even impossible.
What is your education and work experience?

Thank you for your reply.
I have Higher National Diploma in Electrical Engineering and I have technical experience in Computer operation and engineering.
Currently, I don't speak German and I am very willing to learn as soon as I get there.
What are the papers that are required of me before leaving my country (Nigeria-West Africa) and when I get over there(Germany).
I look forward to hear from you again.
Thanks
Ehis.

You should first check if your diploma is recognised and what its German equivalent is:
    http://www.anerkennung-in-deutschland.de/html/en/

Then you should attend a year or two of German classes in your home country, because otherwise you have no chance to find a job:
    http://www.goethe.de/ins/ng/de/lag.html

Then you should send job applications to appropriate companies in your field. The following websites might help you find vacancies and build a professional network of contacts (German language skills required):
    http://www.stepstone.dehttp://www.linkedin.comhttps://www.xing.com/de

Once you get a job offer, the employer can help you to apply for the required work visa.
In the meantime, you are welcome to make exploratory visits to Germany on a tourist visa - but note that no work is allowed on a tourist visa and it also cannot be converted to a work permit.