Mathilde trained at Central Saint Martins in Performance Design, has a Masters in Theatre Directing from Birkbeck College and was a founding member of National Theatre Wales.
She started her professional career as a designer working for the BBC and Robert Lepage. A former assistant director and literary manager at Theatre Royal Stratford East, she is now a freelance director and the founder and artistic director of August 012, an innovative and award winning company based in Cardiff. She teaches at the Royal Welsh College of Music and Drama and is the recipient of a Creative Wales Award for developing new approaches to Opera.
She was assistant director to David Pountney on a site-specific production of La Voix Humaine (Welsh National Opera/Aldeburgh Festival) and is currently developing a site-specific jazz version of The Coronation of Poppea for Welsh National Opera in Cardiff County Hall, and a binaural headphone version of Robinson Crusoe for Give It A Name with Bristol Old Vic.
Directing credits include: Les Misérables (August 012/Chapter); Highway One (August 012/Wales Millennium Centre); Of Mice and Men (August 012/Chapter); Yuri (August 012/Chapter/Underbelly Edinburgh 2017), City of the Unexpected, Associate Director to Nigel Jamieson (National Theatre Wales/Wales Millennium Centre); Cyrano by Matt Hartley (August 012); Roberto Zucco (August 012/Chapter); Tonypandemonium (National Theatre Wales/Parc & Dare); Caligula (August 012/Chapter); Pornography (Waking Exploits/Chapter and touring); Man on the Moon (George Orange/Wales Millennium Centre and touring); De Gabay development week I and II (National Theatre Wales/Gulbenkian Foundation); Serious Money (Waking Exploits/Chapter); Crosswired (East London Dance/Barbican Centre).