Since the 2014/15 season, Lavinia Dames has been a permanent member of the ensemble at the Deutsche Oper am Rhein Düsseldorf, where she has performed roles in her repertoire such as Sophie (Der Rosenkavalier), Susanna (Le nozze di Figaro), Zerlina (Don Giovanni), Pamina (Die Zauberflöte), Gretel (Hänsel und Gretel), Nanetta (Falstaff), Norina (Don Pasquale), Musetta (La Bohème), and Servilia (La Clemenza di Tito).
In 2019, she played Anabella in the world premiere of Anno Schreier's opera Schade, dass sie eine Hure war.
Guest performances and appearances have taken her to the Komische Oper Berlin (Lauretta in Gianni Schicchi, Pamina), the Royal Swedish Opera in Stockholm (Susanna), the Royal Danish Opera in Copenhagen (Susanna), and the Theater St. Gallen (Adina in L'elisir d'amore). In 2017, she made her debut at the Bavarian State Opera in Munich (Isotta in Die schweigsame Frau). She returned to this house in the 2021/22 season with the same role. She also made her debut at the Acht Brücken Festival in the leading role of Simone in Kaija Saariaho's oratorio La Passion de Simone with the Gürzenich Orchestra Cologne at the Cologne Opera/Staatenhaus. In the summer of 2026, she will return again for the third time to the Bayreuth Festival as a flower girl and 1st squire (Parsifal), after making her successful debut there in 2024.
In the 2025/26 season, she will return to the Cologne Opera/Staatenhaus as Pamina and make her debut at the MusikTheater an der Wien in Gordon Kampe's new opera Ich bin Vincent! und ich habe keine Angst (I am Vincent! and I am not afraid). At the Deutsche Oper am Rhein, she will sing Marzelline (Fidelio), Zeitl (Anatevka), Liù (Turandot), Lauretta (Gianni Schicchi), Pamina and Gretel during the season.
Lavinia Dames has appeared at the Vienna Konzerthaus (Schumann's Das Paradies und die Peri) and the Vienna Musikverein. She has performed with the Dortmund Philharmonic Orchestra (Mahler's Symphony No. 2, Mendelssohn's A Midsummer Night's Dream, Brahms' Ein deutsches Requiem), the Belgrade Philharmonic Orchestra (Mahler's Symphony No. 2) and the Göttingen Symphony Orchestra (Haydn's Die Schöpfung). In 2019, she appeared as Betty in Lortzing's Zum Großadmiral at the Prinzregententheater in Munich with the Munich Radio Orchestra, and in the 2020/21 season she performed Benjamin Britten's Les Illuminations with the Saarland State Orchestra.