After his studies of sport science and molecular human biology, Sebastian ran several research projects on muscular energy metabolism and its adaptation to training, before he became the head sport scientist of the T-Mobile professional cycling team at the age of only 28.
Since 2015 Sebastian works as an performance consultant for several national federations, including the french swimming federation. Sebastian ran workshops for the FINA on performance assessment in the pool, is a presenter at the 2018 golden coaches clinic. He is co-Author of the book Science in Swimming by NOVA.