Artistic director of the Kharkiv Music Fest[1] and since the 2022/23 season Kapellmeister at the Deutsche Oper am Rhein, Düsseldorf, Germany.

[3] In 2016 Alekseenok graduated from the Saint Petersburg Conservatory (Prof. Alexander Alexeev), then moved to Germany and completed his master's degree at the Weimar School of Music[4] (Prof. Nicolás Pasquet, Gunter Kahlert and Ekhart Wycik).

Alekseenok also led the first Ukrainian performance[12] of Wagner's Tristan und Isolde at the National Opera of Ukraine in autumn 2021 and conducted a production of Mozart's opera Don Giovanni in Severodonetsk in 2018 as part of the project "Music Overcomes Walls"[13][14][15] In addition to Alekseenok's occupation as a conductor, he is also a writer.

In 2021 his book Die weißen Tage von Minsk: Unser Traum von einem freien Belarus[16] was published by S. Fischer Verlag, as well as many articles and essays for Der Tagesspiegel,[17] Neue Rundschau,[18] Religion & Gesellschaft Zürich,[19] among others.

[21] Alekseenok has also created numerous educational projects in Western and Eastern Europe and led youth orchestras in Germany, Italy, Poland and Ukraine.