[3] In 1985, Rabbi Markovitch enlisted in the Israeli Air Force, where he served for 12 years as an aircrew officer,[4] achieving the rank of major[5] before being discharged.

In 2000, Rabbi Markovitch and his family moved to Kyiv, the capital of Ukraine, where they established educational institutions and organized community events for the Jewish population.

They also established a specialized kindergarten for children with disabilities, open to both Jews and non-Jews, a kosher certification system, youth programs, an Israeli Chabad center, and a comprehensive humanitarian aid network.

During the war, Rabbi Markovitch engaged in humanitarian activities for the Jewish community and Kyiv residents at large.

In the winter of 2023, amid power outages and heating shortages, he relocated hundreds of elderly residents from Kyiv to a temporary shelter in the Jewish community of Poland.

He also engaged in informal diplomatic efforts in Western countries to secure continued support and supplies for Ukraine.

Additionally, the Kyiv Jewish community donated tablets to children with special needs in southern Israel.