If you already have an applicant, you should first inquire about the applicant’s residence status in order to clarify the presence of a work permit. The so called residence title of the refugee is the deciding factor whether someone is permitted to work in Germany. This information can be obtained at the appropriate immigration office. Refugees with a permission to reside are not allowed to take up employment in the first three months.
If you are looking for an applicant, please inquire at the employer service at the Employment Agency.
The Employment Agency is currently also carrying out a priority review, apart from rare exceptions, which has to be waited on, even if employer and prospective employee are in agreement already. The priority review explores whether there is a German employee or an employee from an EU country for the job vacancy. However, the priority review policy might soon be changed again.