Position role profile and prioritize tech stack
Use a clear job title: “System Administrator” with specific specialties (e.g. Microsoft 365 Administrator, Linux) where applicable.
Prioritize key technologies in the ad: list Linux, Windows, Windows Server, Active Directory and Microsoft 365 up front; note Microsoft 365 mentions increased by +2.5 percentage points in the evaluation.
Specify working model explicitly (Onsite 59.2% / Hybrid 40.4%) so that expectations for presence are clear.