Rabbi Nimchinsky joined TASA for the 2016-2017 school year from Pittsburgh, PA where he served as Assistant Principal for grades K-8 at Hillel Academy of Pittsburgh from 2010 to 2016. Prior to that, Rabbi Nimchinsky was the Director of Curriculum & Instruction at the Robert M. Beren Academy in Houston, where he also taught middle and high school Judaic Studies. He has been awarded the Irving L. Samuels Outstanding Teacher Award for Judaic Studies, the Grinspoon-Steinhardt Award for Excellence in Jewish Education, as well as a grant from the AviChai Foundation to develop technological tools to assist in the teaching of Judaic Studies.

Rabbi Nimchinsky has developed a strong national reputation among Jewish Day School educators as an excellent school leader. Rabbi Nim (as he is affectionately called) holds a Masters Degree in education and has been teaching adults, children, and teens for over 28 years. He and his wife Rivkey have been blessed with 9 wonderful children ranging in age from seven to twenty-six, to go along with two grandchildren.