Mr Jansen founded his first company when he was 18.
From 2002 to 2006, he studied economics and business administration at the Witten/Herdecke University, Germany.
He has a master degree in Public Administration (MPA) from London School of Economics and Columbia University.
Prior to Lamoda, he was a management consultant at McKinsey & Company in 2006–2011.
In 2011, he became a co-founder of Lamoda and took the position of Managing Director.
He is an investor, supporting several technical startups.
He is engaged in team sports.