Stefan has trained in the martial arts for over 20 years. In 2000, during a training journey in the USA, he met Vladimir Vasiliev for the first time and became interested in Systema. In 2003, he had the opportunity to train with Systema instructors Andreas Weitzel (Germany) and Alex Kostic (Serbia) and very soon he understood that the Russian martial art was the complete systema of self defense he was searching for. Since then, he has travelled extensively around the world to train with eminent Systema instructors. Today, he lives and teaches Systema in Norrköping Sweden. Stefan also hold a second degree black belt in Ed Parker's Kenpo. He has also trained in various other martial arts, including Wushu, Modern Arnis, ESDS, Jeet Kune Do and Brazilian Jujitsu.