Gini began her career in 1999 with involvement in FIS races and national championships. In 2001 she won the Swiss Junior Championships in slalom and giant slalom. In the same year, the first appearances in European Cup races followed. At the Junior World Championships in Sella Nevea in 2002 , she won the slalom bronze medal behind Veronika Zuzulová and Maria Riesch . In the same year she contested her first races in the World Cup .
Four rather mixed seasons followed with unsatisfactory performance. During the 2006/07 season, Gini caught up with the world's best when she won three European Cup slaloms and achieved her first top ten result in the World Cup in the Sierra Nevada . She celebrated her greatest success at the 2007 World Cup in Åre when she won the bronze medal in the team competition . On January 13, 2008, she achieved her best World Cup result in Maribor when she finished sixth in the slalom.
On November 29, 2009, Gini fell in the first run of the Aspen slalom and tore a cruciate ligament in his left knee. In the winter of 2010/11 she was never able to qualify for the second round in World Cup slaloms, which is why she announced her retirement at the end of the season in March 2011.