Job Search Visa for Blue Card Applicants (High-Skilled Immigrants) or Blue Card Visa?
If you are high skilled regarding to EU blue card directive (click here) it is possible to apply for a job search visa at the German embassy in your country or in the country of your residence. You can come to Germany and search a job, if you find an employer you can apply for the residence permit in Germany.
Mostly it is a pretty much faster way to apply for the blue card from abroad, because the German embassy will not send your file to the German aliens office for acceptance, but only to the responsible German labour agency. Herefore an employment contract is necessary, at least the employer should accept the employment definitely in case of job permission.
You should plan this visa application carefully together with your lawyer, because if the embassy rejects your application you will have difficulties to get a visa for the Schengen states and Germany in the future.