Vasilija Vojinovic was born in Belgrade and received her training at TC Red Star. She won the title of Serbian National Team Champion U14 and U18, and Belgrade Championship U14. She completed her secondary education at the Sports High School in Belgrade and subsequently graduated from the in Law School for Economy and Justice. In 2018, Vasilija began her coaching career at the Costa Navarino Resort in Greece, where she honed her skills as a tennis coach. In 2020, she worked as a tennis coach at Colonial Sun, further expanding her coaching experience.