Yes, regardless of their status (refugee B or C permit, F permit or S status).

People whose asylum procedure is still under review (N permit) also have the right to work after 3 to 6 months' residence. Employment may be limited to certain sectors, and must in principle give priority to residents.

For further information, see the "Refugees & employment" brochure, available here.

To hire a person holding a B refugee, F refugee or F status permit, simply fill in a registration form on the EasyGov.swiss online portal, or via the registration form available on the portal of the State Secretariat for Migration (SEM).
https://www.sem.admin.ch/sem/fr/home/themen/arbeit/erwerbstaetige_asylbereich.html

In the case of an N permit or S status, the employer must first request authorization from the relevant cantonal authority, which will check that the working conditions are respected.
Geneva-OCPM: https: //www.ge.ch/demander-permis-travail,
Vaud-SPOP: https://www.vd.ch/themes/population/population-etrangere/

For more information, see the brochure "Réfugié.es & emploi" available here.