In 1978, after graduating from the Conservatory, he became a piano tutor at the Kharkov Institute of Arts where he simultaneously studied conducting under the guidance of Vakhtang Jordania.
In 1990 he moved to live in Austria, and since then he has worked as a Professor of Piano, Chamber Music and Conducting at the Conservatory of Carinthia in Klagenfurt.
In 2006, in collaboration with his wife, he recorded Wien um 1900 ("Vienna around 1900"), a CD of original violin music by Robert Fuchs, Pavel Singer and Alexander von Zemlinsky, which was issued by Gramola Vienna and brought them international recognition.
[3][5]As of 2009 they recorded Joseph Haydn's Sonatas along with DEKA published Antonio Vivaldi's Four Se asons which they performed in Cremona.
Kornienko was the head conductor of Sofia Philharmonic Orchestra from 2009 till 2011 and from 2012 he has been the head conductor of the international project Internationale Donauphilharmonie (the project involves musicians of all the countries that the Danube flows through).