Coloratura soprano Sharleen Joynt has been praised for her "silvery, sparkling, substantial and resonant soprano" [Die Deutsche Bühne], her "scintillating high range, reminiscent of the most beautiful moments of Mady Mesplé" [Opernwelt], and "an artistic command that leaves the listener breathless" [Deutschland Radio]. 

For the 2017/2018 season, Sharleen joins Opera Philadelphia as Winnie in their workshop and production of Sky on Swings, a new opera by Lembit Beecher, starring Frederica von Stade. She returns to Pacific Opera Victoria for her first Musetta in La Bohème, and debuts with both Anchorage Opera and the Tanglewood Music Festival as Cunegonde in Candide. She will be heard with the Bach Society of St. Louis as the soprano solo in Howard Goodall's requiem, Eternal Light, and will also appear as Queen of the Night with Theater Augsburg's Summer concert series. During the 2016/2017 season, Sharleen joined the Orlando Philharmonic as Cunegonde for a concert staging of Candide, and performed Queen of the Night in The Magic Flute with Pacific Opera Victoria. She sang Mahler's Symphony No. 4 with the Thunder Bay Symphony and joined the Victoria Symphony for their New Year's operetta gala.

In 2015/2016, Sharleen starred as Christine in the Canadian Stage and Soundstreams co-production and North American Premiere of Belgian composer Philippe Boesman’s Julie, based on the 1888 Strindberg play, “Miss Julie”, and as Galatea in Acis & Galatea, making her Opera Piccolo San Antonio debut. She also returned to Theater Augsburg's summer concert series, singing Mozart concert arias. 

The 2014/15 Season included her China debut, as Zerbinetta in Oper Leipzig's production—and the Chinese premiere—of Ariadne auf Naxos, and Blonde in Die Entführung aus dem Serail in Augsburg, Germany, in their summer concert series. She also performed Zerlina in Don Giovanni with Against the Grain Theatre, both in Toronto and with the Ottawa International Chamber Music Festival.

Sharleen's 2013/14 Season included rejoining the Metropolitan Opera roster to cover Fiakermilli in R. Strauss' Arabella. She appeared with the Badisches Staatstheater Karlsruhe (Marie, La Fille du Régiment; Adele, Die Fledermaus), Theater und Orchester Heidelberg (Oscar, Un Ballo in Maschera), and made her Swiss debut with the Theater St. Gallen (Zerbinetta, Ariadne auf Naxos). She was also nominated for the prestigious “Der Faust” prize, awarded by the German Stage Association, for her performance in Wolfgang Rihm's Dionysos. For the 2012/13 Season Sharleen spent her second year as an ensemble member of the Theater und Orchester Heidelberg, performing Blonde in Die Entführung aus dem Serail and receiving critical acclaim for her role of Soprano 1/Ariadne in Wolfgang Rihm's Dionysos. She also made both a role and theater debut with the Badisches Staatstheater Karlsruhe as Marie in La Fille du Régiment. Her uncommonly honest embodiment of characters and fearless onstage presence in German Regietheater led to a 3-page article in the May 2013 issue of Deutsche Bühne magazine.

The 2011/12 Season included joining the Theater und Orchester Heidelberg ensemble for Frasquita in Carmen and her vastly critically acclaimed Zerbinetta in Ariadne auf Naxos, the role for which she was nominated for Nachwunschsängerin (Young Singer of the Year) by Opernwelt magazine. She also debuted with the Winter in Schwetzingen Baroque Festival as Fausta in the German premiere of Scarlatti's Marco Attilio Regolo. Sharleen's 2010/11 Season included joining the Metropolitan Opera roster to cover the role of Zerbinetta in Ariadne auf Naxos. She joined the Anhaltisches Theater Dessau ensemble, making her European debut as Oscar in Un Ballo in Maschera, followed by Adele in Die Fledermaus, and Despina in Cosi Fan Tutte. She also appeared with the International Vocal Arts Institute in Tel Aviv to perform Zerbinetta under the baton of Metropolitan Opera conductor Paul Nadler.

In 2009 Sharleen made her Carnegie Hall debut singing the soprano solo in Schubert's Mass in G. For the 2009/10 Season she was an Emerging Artist with Calgary Opera. She graduated from Mannes College of Music in New York in 2009 with her Masters degree in Vocal Performance. She has been a prizewinner in the Liederkranz Foundation Competition, the George London Foundation Competition, the Young Concert Artists International Auditions, the Licia-Albanese Foundation Competition, the Canadian Music Competition's International Stepping Stone, and the Palm Beach Opera Vocal Competition.