Simon has designed sound (and video) for all of Wise Children's shows: The Little Matchgirl and Happier Tales (The Lucky Chance); Wuthering Heights (UK & US tour and The Holland Festival); Bagdad Café (Old Vic); Romantics Anonymous (Bristol Old Vic); Malory Towers (UK tour) and Wise Children (UK tour).

​He also worked with Emma on productions for Kneehigh Theatre including Brief Encounter (Worldwide). 

​Other recent theatre credits include: Hamnet (Garrick Theatre); Groundhog Day (The Old Vic, Broadway); The Secret Life of Bees (Almeida Theatre); Hex (National Theatre); A Christmas Carol (The Old Vic, Broadway); Woman In Mind (Chichester Festival Theatre); Girl From The North Country (Old Vic, West End, Broadway, UK & Ireland Tour); Faith Healer, Three Kings, Lungs, Present Laughter, The Caretaker, The Master Builder, Future Conditional, High Society (Old Vic); Standing At The Sky’s Edge (Sheffield Theatres); and Matilda The Musical (Worldwide).

Alongside his design work, Simon is the Technical Director & Digital Producer for Wise Children and an Associate Artist at The Old Vic. Simon is a Fellow of the Guildhall School of Music & Drama.

​Simon is the proud recipient of an Olivier Award for his work on Matilda The Musical, a Tony Award for his work on A Christmas Carol and a Stage Award for Digital Innovation for his work at Wise Children during the COVID pandemic.