In 1988–90, he served in the Soviet Army, after which worked as a sports instructor in Chernivtsi.
In 2003 while working in SC Tavriya Simferopol, Marushchak graduated the Moscow State Academy of Physical Culture and Sports.
In 2014, Marushchak ended up in a middle of political scandal connected with the annexation of Crimea by the Russian Federation when FC Zhemchuzhyna Yalta played couple of exhibition games with Russian FC Terek Grozny.
[3][4] After the annexation of Crimea Marushchak coached Zhemchuzhyna Yalta which competed in the 2014 Republican championship leading it at the first half.
[5][6] Marushchak is a non-partisan member of the Ternopil Oblast Council.