Jean trained with Karen Wentworth 1984-87 in Denmark and subsequently did post-graduate terms at the Constructive Teaching Centre in London, where he also taught. Between 1991 and 1996 he taught at the North of England Teacher Training Course in the Alexander Technique, Leeds.
In 1990 Jean started STAT Books (which closed down in 2002). He has published books on the Alexander Technique under the imprint of Mouritz (www.mouritz.co.uk). He has also edited and/or typeset a number of Alexander Technique books for STAT and individual teachers. He is the designer of some websites on the Alexander Technique.
Jean was co-director of the 7th International Congress of the F. M. Alexander Technique in Oxford, 2004. He was STAT Council member 2007-09, and a member of STAT's Publications Committe 1991-2009. He instigated and created the STAT Archives during the period 1991-2009. He was a trustee of the F. M. Alexander Trust 2007-2010. He was assistant director 1997-2012 at The Alexander Technique Studio in London, a teachers training course.
He was manager of the Alexander Technique centre in Imperial Wharf (www.atiw.org) run by the Walter Carrington Educational Trust, 2010-2018. He taught at the Constructive Teaching Centre 2011-2015. He gave private lessons at the Pimlico Centre (www.pimlicocat.com) 2006-2018. He moved to Graz, Austria, in June 2018.