can I work as a freelancer while I'm a full-time employee?

Hi @Osama__Za , thanks for your question. 

This is something you need to decide and also discuss with your employer. Usually, secondary employment or additional jobs (Nebentätigkeit) have to be made transparent to your employer and he needs to agree with it. Check with your employer and in your contract.

If you want to keep your freelancer status and have other jobs on the side. Then you should consider the benefits and draw backs from being a freelance. Such as taxes.

 I hope this answers your question. Let us know if you have further questions. Best Yara