Dear @Eb, Ebrima Sannoh,
Welcome to the Wefugees community and thank you for your question!
Please have a look at this thread where a similar question has been answered already:
Can a refugee with Greek protection receive a German work/residence permit if they have been offered a job?
This PDF by the BAMF also explains the necessary requirements in order to work in Germany (see page 14, "Residence for Employment").
Holding a valid residence permit in Italy doesn't automatically give you the right to work in another country of the Schengen area. You will need to check if you are eligible for a working permit. Please have a look at the thread I linked here for more information.
Do feel free to reach out to the community again if you need any further assistance.
All the best and Good Luck :-)