Avi M. Schulman has written:

'Like a raging fire' -- subject(s): Biography, History, Jewish leadership, Rabbis, Reform Judaism, Union of American Hebrew Congregations

Judaism is not a centralized religion with a "head Rabbi" or any single leader. Some countries have chief rabbis, but they are more like advisors for their specific communities. The United States does not have a chief rabbi.

Rabbis are primarily teachers. However, they can specialise in different fields of Judaism, some lead congregations, others are counselors, legal experts, etc.

Israel has 2 Chief Rabbis:

1. Ashkenaz - Yona Metzger

2. Sephard - Shlomo Amar

A Rabbi is primarily a teacher. Depending on the focus of the individual Rabbi, he or she have different specialties. Some Rabbis are pulpit rabbis who have congregations. Their main job is to lead religious services and work with congregants, often running religious classes.

Other Rabbis specialise in religious law, similar to lawyers and judges. Others work specifically as teachers, etc.