In August 2020, Reznik was the sole young conductor from the LEAD! Foundation Conducting Academy selected to share the podium with eminent Finnish conductors Jukka-Pekka Saraste, Esa-Pekka Salonen, Sakari Oramo, Dalia Stasevska, and Klaus Mäkelä. The concert, streamed live worldwide, marked the 90th birthday of illustrious conducting teacher, Jorma Panula, at the Fiskars Summer Festival, Finland.
Reznik made his international conducting debut with the Szczecin Philharmonic Orchestra at the Choriner Music Summer Festival in Germany in 2018. He was immediately reinvited to conduct the orchestra in Szczecin in the following year, to high public and critical acclaim. Since then, he has been increasingly in demand, excelling in Romantic and contemporary repertoire, to which he feels a particular dedication.
During 2018 and 2019, he was invited by Rune Bergmann to conduct the Norwegian Festival Orchestra at the Fjord Cadenza Festival in Norway, comprised of musicians from major international orchestras such as Staatskapelle Dresden and the Helsinki, Calgary, and Oslo Philharmonic orchestras.
Reznik has also conducted orchestras including I Cameristi del Maggio Musicale Fiorentino, Stavanger Symphony Orchestra, Moravian Philharmonic Orchestra, Tomsk Philharmonic Orchestra, St.Petersburg Symphony Orchestra, Budapest Dohnanyi Orchestra, and the Athens Philharmonia.
He also conducted the final round and closing concert of the first international Pratté Harp Competition and Festival in 2019.
Reznik is the founder of the Camerata Ostrogothia, a chamber orchestra consisting primarily of members from the Norrköping Symphony Orchestra, which is dedicated to the music of the Classical and Romantic period. It has also performed orchestral works by the recently rediscovered Bohemian-Swedish composer of the early Romantic era, Antoine Pratté.
He has collaborated with soloists such as Valery Sokolov, Johan Dalene, Pekka Kuusisto, and Catherine Michel.
Reznik studied conducting and has been mentored by personalities such as Jukka-Pekka Saraste, Sakari Oramo, Jorma Panula, and Christian Ehwald.
Besides his conducting activities, he enjoys a successful international career as a soloist, chamber musician, and Co-Principal bassoonist of the Oslo Philharmonic Orchestra.