Cécile Restier received her training at the Conservatoire National de Musique et Danse in her hometown Paris in vocal accompaniment (lied and opera) and piano (concert level). During her studies she won three first prizes and was also entrusted with accompanying vocal classes and vocal ensembles as well as courses in diction between 2003 and 2007. In 2007 she took up an engagement as solo répétiteur at the Frankfurt Opera, and since 2012 she has held the same position at the Vienna State Opera. She taught French diction and phonetics at the MUK Vienna.
Guest engagements have taken Cécile Restier to the Salzburg and Bregenz Festivals, the Bard Summer Festival (USA), French opera houses such as the Opéra-Comique and the Théâtre du Châtelet Paris, the operas in Lyon, Rouen and Montpellier as well as the Théâtre La Monnaie Brussels, the Philharmonie de Paris and the Accademia Santa Cecilia di Roma.
She has worked with conductors such as Alain Altinoglu, Marco Armiliato, Bertrand de Billy, Paolo Carignani, Jean-Claude Casadesus, Frédéric Chaslin, William Christie, Plácido Domingo, Gustavo Dudamel, Christoph Eschenbach, Dan Ettinger, Asher Fisher, Mikko Frank, John Eliot Gardiner, Jésus López Cobos, Ingo Metzmacher, Marc Minkowski, Evelino Pidò or Simone Young as well as with singers such as Roberto Alagna, Piotr Beczała, Plácido Domingo, Juan Diego Flórez, Ferruccio Furlanetto, Angela Gheorghiu, Peter Mattei, George Petean, Neil Shicoff, Nina Stemme or Béatrice Uria Monzon.
Cécile Restier regularly appears as a soloist in recitals and concerts. She has performed with Juan Diego Flórez at the Vienna State Opera, the Musikverein Graz and the Teatro del Liceu in Barcelona, among others. At the New Year’s Eve Gala 2021 she performed at the Metropolitan Opera New York.