[5] In 2015 Jelleyman was the youngest finalist in the APRA SOUNZ Contemporary Award (Te Tohu Auaha) with his piece Expanse for mezzo-soprano and chamber ensemble.
[11] In 2021 he was once again a finalist in the APRA SOUNZ Contemporary Award with the piece Klein Fountain which was written with the Ensemble intercontemporain while he was at the Paris Conservatoire.
[3][12] In addition to composing Jelleyman was artistic director of Portal Fest, a new contemporary music festival held in Wellington in 2019.
[7] In 2016 Jelleyman won the Philip Neill Memorial Prize followed by a Composers Association New Zealand Trust Fund award in 2019.
In 2021 he received an Arts Foundation Springboard Award which was given to stimulate career development and consisted of a financial payment and mentoring from Ross Harris.