He studied at the University of Edinburgh, the Royal College of Music, and the National Opera Studio in London.

His many recent appearances at home and abroad include his English National Opera debut as Nemorino L’elisir d’amore, Aufidio Lucio Silla (Salzburg Landestheater), Tsar Berendey in Rimsky-Korsakov’s The Snow Maiden and Ramiro La Cenerentola (both for English Touring Opera), Mordecai Esther (Solomon’s Knot; Halle Handel Festival, Wigmore Hall), Count Almaviva Il barbiere di Siviglia (Charles Court Opera; Wilton’s Music Hall), Alessandro Il re pastore and Italian Tenor/Guglielmo Viva la Diva (Convenienze E Inconvenienze Teatrali) (Buxton Festival), Count Errico La vera constanza (New Chamber Opera; Oxford), Toby Robinson Crusoe (West Green House Opera) and Mosquito The Cunning Little Vixen (Welsh National Opera).

Joseph opened his 2025-26 season with his Canadian debut as Ramiro La Cenerentola for the Opéra de Québec, having finished a busy 24-25 season with his debut for Longborough Festival Opera as Almaviva Il barbiere di Siviglia and Orpheus Orpheus in the Underworld for IF Opera.

Among his other recent performances, Joseph has featured as Captain Trevor in a new critically-acclaimed and Gramophone Awards-nominated recording of C.V. Stanford’s Shamus O’Brien (Retrospect Opera); his other operatic roles include title role Albert Herring, Tom Rakewell The Rake's Progress, Jupiter Semele, Basilio Le nozze di Figaro, Pylade Iphigénie en Tauride, Ernesto Don Pasquale, and​ Leicester Maria Stuarda.

In concert, Joseph appears regularly in a wide variety of repertoire including both Bach Passions both as Evangelist and tenor soloist (arias). Concert highlights include Beethoven Missa Solemnis with Southbank Sinfonia, Bach St John Passion with the Academy of St Martin-in-the-Fields, and the Monteverdi Vespers at St John’s, Smith Square, Britten’s Serenade for Tenor, Horn and Strings and Les Illuminations (both with Skipton Camerata), Rossini’s Stabat Mater, and numerous performances of Orff’s Carmina Burana.