She is a four-time German national champion (2008, 2010, 2011 and 2013) and has won twelve senior international medals, including six gold.

At the age of 10, she skated at the German Novice Championships, which was held as an open competition, where she won the silver medal.

She also won the senior competition of the 2008 Bavarian Open before heading of to the 2008 World Junior Championships in Sofia, Bulgaria where she placed 8th.

Her next competitions were the Nebelhorn Trophy in Oberstdorf, Germany and third the Junior Grand Prix in Cape Town, South Africa where she placed 9th and 5th respectively.

Hecken claimed her first senior ISU medal at the 2008 Ondrej Nepela Memorial in Bratislava, Slovakia where she placed 3rd.

Hecken ended the season on a high note by placing 7th at the World Junior Championships in Sofia and winning both the 2009 DEU Pokal in Dortmund, Germany and the 2009 Triglav Trophy The first competition of Hecken's Olympic season was the Nebelhorn Trophy in Oberstdorf, Germany.

In May 2011, Hecken underwent hand surgery and went to Italy the next month to work with her choreographer Edoardo De Bernardis.

She won her fourth German national title, in Hamburg in December 2012, but lost the direct qualification for the European Championships versus Nathalie Weinzierl.