Biljana competed at the 2008 Olympic Games where she was 4 centimetres short of making the 2008 Olympic final. She also appeared on two World Championships, one World Indoor Championship and two European Indoor Championships. Her best results were bronze medal at 2009 World Championships with then national record 14.52 m, silver medal at 2009 IAAF World Athletics Final with new national record 14.56 m and fourth place 2009 European Indoor Championships.