In spring 2010, before completing her studies, Giunta made her professional debut as Cherubino in
Le nozze di Figaro with
Opera Atelier and the
Tafelmusik Baroque Orchestra in Toronto. She spent summer 2010 at the
Ravinia Festival in Chicago, where she was invited to audition for the
Metropolitan Opera Lindemann Young Artist Development Program, which she joined in September 2011. Earlier in 2011, she had made her American operatic debut as Pribaoutki in the acclaimed
Robert Lepage production of
Stravinsky's
The Nightingale & Other Short Fables, on tour with the
Canadian Opera Company. That season, she also performed Zweite Dame in the Canadian Opera Company main stage production of Mozart's
Die Zauberflöte, directed by
Diane Paulus, and made her debut at
Opera Lyra Ottawa as Lola in Mascagni's
Cavalleria rusticana. She was recognized for her work in 2017 with awards from the
International Opera Awards,
WhatsOnStage Opera Awards and
The Arts Desk. Giunta made her London debut at
Cadogan Hall in
the BBC Proms on 27 August 2018. She also made her first appearance on
BBC Television as a guest on
BBC Proms "Extra", live at
Royal Albert Hall in August, 2018. She gave her first
TEDx Talk, on embracing artistic versatility, in May 2018. She also received critical acclaim for her role as Dinah in the film version of
Trouble in Tahiti, released in July 2018 by
Opera North and
The Guardian. She went on to debut the role of Rosina in Rossini's
Il barbiere di Siviglia, and the title roles in
Bizet's
Carmen and
Strauss's
Der Rosenkavalier, all for
Oper Leipzig. In 2019 Giunta debuted as Dodo in
Breaking the Waves by
Missy Mazzoli at the
Edinburgh International Festival, debuted the role of Idamante in Mozart's
Idomeneo for Opera Atelier, debuted at
The Grange Festival as Cherubino, at the
Sydney Opera House in a solo concert, and at the
Royal Swedish Opera and
Seattle Opera as the title role in Rossini's
La Cenerentola. In 2020, before
COVID-19 pandemic-related cancellations, Giunta also debuted at the
Deutsche Oper am Rhein as Bradamante in
Handel's Alcina, and reprised the role of Dodo in
Breaking the Waves for the
Adelaide Festival. ==Operatic roles==