She graduated from the Rostropovich Orenburg State Institute of Arts.
Since 2013 till 2015 she did a course at the Galina Vishnevskaya Opera Centre (class of the People's artist of Russia Makvala Kasrashvili). Since 2015, Maria Buinosova has been a soloist of the Centre, where she performed Xenia in Mussorgsky’s Boris Godunov, Tatyana in Tchaikovsky’s Eugene Onegin, Gorislava in Glinka’s Ruslan and Lyudmila, Marfa in Rimsky-Korsakov’s The Tsar’s Bride, Micaëla in Bizet’s Carmen. She participated in the masterclasses given by Montserrat Caballé, Sebastian F. Schwarz and Henning Ruch.
Maria Buinosova participated in the 23th Andrey Sakharov International Arts Festival (Nizhny Novgorod), in the 7th Mstislav Rostropovich International Festival (Orenburg), The Steppe Palmyra’s Symphony and The Nothern Palmyra festivals. She is an award winner of the International Contest Virtuosi of the 21th Century and finalist of the Francisco Viñas International Voice Contest (Barcelona). She participated in the concerts held by Vladimir Spivakov International Charity Foundation and dedicated to commemorate the 50th anniversary of UNESCO (Moscow).
In 2015, she debuted as Gerda in Banevich’s The Story of Kai and Gerda at the Bolshoi Theatre. There she performed Marfa in Rimsky-Korsakov’s The Tsar’s Bride.
Since 2016 she has been soloist of the Mikhailovsky Theatre where she performed Violetta in Verdi’s La Traviata, Countess in Mozart’s Le nozze di Figaro, Pamina in Mozart’s The Magic Flute, Nedda in Leoncavallo’s Pagliacci.
In 2017, she joined the Novaya Opera Theatre.
 Awards and Honours:
•    Prize-winner of the 7th Byulbyul International Vocalists Competition (2nd Prize, Baku, 2018)
•    Finalist of the Big Opera, on the Russia-K TV–Channel (2017)
Roles performed at the Novaya Opera:
Juliette in Gounod's Romeo et Juliette
Marfa in Rimsky-Korsakov's The Tsar's Bride
Violetta in Verdi's La Traviata
Gilda in Verdi's Rigoletto
Musetta in Puccini's La bohéme
Juliette in Korngold's Die tote Stadt
Donna Clara in Zemlinsky's Der Zwerg
Lucia in Donizetti's Lucia di Lammermoor
Madeleine / Madame de Latour in Adam's Le postillon de Lonjumeau