Jack Sheen is a conductor and composer from Manchester. In 2017 at the age of 23 he became the RNCM's youngest ever Junior Fellow in Conducting appointed by Sir Mark Elder, through which he enjoys a close relationship with the BBC Philharmonic, Manchester Camerata, and the Royal Liverpool Philharmonic Orchestra. Jack's music has been performed by orchestras such as the London Symphony Orchestra, BBC Philharmonic, Aurora Orchestra, and Manchester Camerata; ensembles including Apartment House, EXAUDI, Plus Minus Ensemble, and Psappha; and commissioned by organisations such as London Contemporary Music Festival, Aldeburgh Festival, and BBC Young Artists Day. Awards include a Royal Philharmonic Prize for Composition (2016), a RNCM Gold Medal (2012), and BBC Young Composer of the Year (2011). Between 2016-17 he held an Artist Fellowship at the Guildhall School of Music & Drama.

Since 2014 Jack has conducted at international festivals and venues including the Barbican, Lucerne Festival Academy, Dartington International Summer School, Royaumont, Wigmore Hall, LSO St Luke's, Cheltenham Festival, Huddersfield Contemporary Music Festival, Cafe OTO, and St John at Hackney, and has appeared numerous times on BBC Radio 3, Reform Radio, and NTS. His time as assistant to Ilan Volkov and Richard Baker has led to work with the BBC Scottish Symphony Orchestra, Bit20 Ensemble (Norway) and Orchestre Philharmonique du Luxembourg.

He is the founder and Director of An assembly, a group dedicated to contemporary and experimental music, installation, and performance.