In 2009 she started performing in The Mikhailovsky Theatre in St. Petersburg, her debut role was Violetta in Verdi's La Traviata.

[3] In the same theatre she performed other roles for lyrical and coloratura soprano, such as Princess Eudoxie in Galevi's La Juive, Oscar in Verdi's Un ballo in maschera.

In August 2011 she won the 1st prize in Mikhailov's Young Opera Singers’ Contest (Cheboksary, Russia).

In 2012 she was invited by Teodor Currentzis to the ensemble of soloists of The Perm State P.I.Tchaikovsky Opera and Ballet Theatre.

[4] In June 2015 Koutcher became a main prize winner in the competition Cardiff Singer of the World.