Alexander Roslavets graduated at St. Petersburg Rimsky-Korsakov State Conservatory in 2014 where he studied under Professor Nikolai Okhotnikov.
While studying at the Conservatory he was a soloist of the Rimsky-Korsakov St. Petersburg State Conservatory theatre where he appeared on stage as Malyuta Skuratov in The Tsar's Bride by Rimsky-Korsakov and he took part at the open-air opera festivals in Saint Petersburg where he sang the role of Mephistopheles in Faust and King Dodon in The Golden Cockerel by Nikolai Rimsky-Korsakov conducted by Fabio Mastrangelo.In April 2014 he made his debut on the stage of the Mikhailovsky Theatre as Tom in Un ballo in maschera.
He was admitted to the Young Artist Program of the Bolshoi Theatre of Russia and in 2015 he made his debut on the stage of the Bolshoi performing in La Traviata under the baton of Tugan Sokhiev and Don Basilio in Il Barbiere di Siviglia.
Moreover he performed the role of Duke of Cornwall in the World Premier of S. Slonimsky`s King Lear on the stage of the Tchaikovsky Concert Hall conducted by Vladimir Jurowsky and he took part in the new production of La damnation de Faust staged by Peter Stein at Bolshoi.
In October 2016 he joined the ensemble of the Hamburg State Opera where he debuted in the role of Monterone in Rigoletto
He is the winner of many International Competion as the 42nd Russian National Vocal Graduates Competition in St. Petersburg where he won the Grand Prix, the 10th International competition of E. Obraztsova in St. Petersburg where he was awarded a diploma and he won the first prize in the 7th International Competition of Opera Singers «Saint-Petersburg». In 2016 he won the second prize in the 6th Galina Vishnevskaya International Opera Singers Competition in Moscow and the Grand Prix and the Audience Prize in the II International Eva Marton Competition in Budapest. In 2017 he took part in the 36th International Hans Gabor Belvedere Singing Competition where he was awarded a special prize and he won the second prize in the 3rd International Singing Competition of Portofino. He is the laureate of the Special Foundation of the President of Belarus, which supports young talents.