 He was presented "Sergei at the Aronoff" piano program at the Grand Opening of the Aronoff Center for the Arts, Cincinnati, and has appeared as a soloist with Kharkiv Philharmonic Orchestra, Ukraine; Cincinnati Chamber Orchestra, Keith Lockhart, Music Director, USA; Northern Kentucky Symphony, USA; Russian Chamber Orchestra of San Francisco, USA and Shanghai Philharmonic, Shanghai, China.Sergei Polusmiak has been a jury member of major international piano competitions, including Vladimir Krainev International Piano Competition, Kharkiv, Ukraine; the First International Competition for Young Pianists in Memory of Vladimir Horowitz, Kiev, Ukraine; Joanna Hodges International Piano Competition, Palm Desert, California, USA; Lysenko International Piano Competition, Kiev, Ukraine; Milosh Magin International Piano Competition, Paris, France; Rameau au Chateau International Piano Competition, Cosne sur Loire, France; World Piano Competition, Cincinnati, USA; International Piano Competition "Svyato Muz" Lugansk, Ukraine and George Gershwin International Piano Competition, Philadelphia, USA.He was also founder and artistic director of the Ukrainian-France Summer Music Festival in Kharkiv, Ukraine; director of Ukrainian Children's Music Theater and director of Summer Piano Institute at Northern Kentucky University.