Caitlin Hulcup made her European debut at the Wiener Staatsoper as Enriquetta I Puritani and has since appeared at leading opera houses internationally, including Royal Opera House London, Bolshoi Theatre Moscow, Deutsche Staatsoper Berlin, Theatre an der Wien, Theatre des Champs Elysees, Maggio Musicale Fiorentino, Bayerisches Staatsoper Munich, and Palau de les Arts Valencia. ​​

She appears regularly in oratorio, concert and Lieder recitals and has a broad operatic repertoire that features major roles by Handel, Mozart and Strauss. Caitlin sang with Zubin Mehta in Valencia and Florence, as Donna Elvira: Don Giovanni and as Octavian: Der Rosenkavalier. She has also appeared as Octavian in Moscow with Vassily Sinaisky and in Beijing with Sebastian Lang Lessing. As Rosina: Il Barbiere di Siviglia, Caitlin sang at the Wiener Staatsoper with Yves Abel and with Jean- Christoph Spinosi. She debuted as Sesto, La Clemenza di Tito with Benjamin Bayl and performed Idamante: Idomeneo with Tobias Ringborg for Garsington and in Lisbon at Teatro Nacional de Saõ Carlos with Christian Curnyn. She sang as Iseult: Le vin Herbe by Frank Martin for Welsh National Opera and as Penelope: Il Ritorno di Ulisse in Patria for Royal Opera Covent Garden with Christian Curnyn. Caitlin recently debuted as Fricka Die Walküre at the Esplanade Singapore with Tse Law Chan and the Orchestra of the Music Makers. She was also featured in the live Digital Concert Hall broadcasts of the Oxford Lieder Festival 2020 with Sholto Kynoch and Jonathan Stone. 

Highlight concert engagments have included Beethoven's 9th Symphony with Gustavo Dudamel in Venezuela, Mahler’s Knaben Wunderhorn at the Sydney Opera House with Mark Wigglesworth, Mozart’s ‘Great’ Cmin Mass with Jeremie Rhorer in Hamburg, and Beethoven's Missa Solemnis with Martin Haselböck and the Wiener Akademie. Caitlin also performed Mahler's 2nd Symphony with the SSO and chief conductor David Robertson, Mahler's 8th Symphony in Scotland with the RSNO under Peter Ounjian, and the Angel in Elgar's The Dream of Gerontius with David Parry.

Caitlin has sung with many leading early music conductors including René Jacobs (Diana/Il Destino: La Calisto at La Monnaie in Brussels), William Christie (Cyrus: Belshazzar at Salle Playel and Barbican), Christian Currnyn (Aristeus: Orpheus in ROH production by Keith Warner) and Alan Curtis (Ariodante in Braunschweig, Cesare: Catone in Utica at Theatre des Champs Elysees and Alceste: Admeto in Theatre an der Wien). She has performed as Orfeo in Gluck's Orfeo ed Euridice with Kenneth Montgomery and in Finnland with Fabio Biondo as Ariodante with Nicholas Kraemer, Dido Dido and Aeneas with Richard Egarr and the Academy of Ancient Music at the Barbican. Commercial CD releases include Arbaces: Artaxerses for Linn Records with Ian Page, Vivaldi's Griselda and Irene Theodora for Pinchgut Opera conducted by Erin Helyard, Iphigenie en Tauride with conductor Anthony Walker and Calbo: Maometto II with David Parry.

Together with her performing career, Caitlin has established her reputation as a fine singing teacher. See Teaching for more information.