Rabbi Schachter has been associated with the Rabbi Isaac Elchonon Theological Seminary for over 50 years. He joined the faculty in 1967, at the age of 26, the youngest Rosh Yeshiva at RIETS. Since 1971, Rabbi Schachter has been Rosh Kollel in RIETS' Marcos and Adina Katz Kollel (Institute for Advanced Research in Rabbinics) and also holds the institution's Nathan and Vivian Fink Distinguished Professorial Chair in Talmud.
In addition to his teaching duties, Rabbi Schachter lectures, writes, and serves as Posek, a world renowned decisor of Jewish Law. A prolific author, he has written more than 100 articles, in Hebrew and English, for such scholarly publications as HaPardes, Hadarom, Beth Yitzchak, and Or Hamizrach. Seforim written include Eretz HaTzvi, B'ikvei HaTzon, Ginas Haegoz, and Nefesh HaRav, MiPninei HaRav and Divrei HaRav.
At age 22, Rabbi Schachter was appointed assistant to the renowned Rabbi Joseph B. Soloveitchik zt"l. Rabbi Schachter earned his B.A. from Yeshiva College, an M.A. in Hebrew Literature from the Bernard Revel Graduate School in 1967, and was ordained that same year.