Spiritual leaders are called Rabbis. The person who leads prayers during religious services are called cantors. Judaism is not a centralised religion and doesn't have the hierachy associated with...
In Jewish synagogues the religious authority is usually called the Rabbi.
A synagogues will often have a Gabbai (Hebrew: גבאי) is a person who assists in the running of a synagogue and ensures...
If you are referring to Rabbis. Depending on the type of synagogue it is, most place ads to hire a new Rabbi. Potential hires apply to the position and interview with a committee from the synagogue....