Halkina began competing in the junior international scene in 2009, she won many medals as a junior, at the 2010 Pesaro Junior World Cup where she won gold in ball, hoop and silver in Team Event. At the 2010 Junior Grand Prix she won the all-around bronze medal. She won gold in hoop at the 2012 Pesaro Junior World Cup. At the 2012 European Junior Championships she and Team Belarus won the Team silver medal, she won silver in ribbon and ball final. Halkina then won the all around gold medal in the junior division at the 2012 Aeon Cup in Japan.