Krisztián Balassa graduated from the class of composition of Szent István Király Conservatory of Music before he got his degree in choral and orchestral conducting at the Liszt Ferenc Academy of Music, as a student of Tamás Gál and András Ligeti, respectively. Already at a young age, he was interested in drama and music theatre; he performed as an actor and singer at the National Theatre and at the Hungarian State Opera. (The Hungarian State Opera's Children Choir)
Between 2002 and 2004 Balassa was a professor of the University of Theatre and Film Arts in Budapest. Since 2006 he has contributed to the programs of the Budapest Operetta Theatre as orchestral pianist, from 2008 to 2016 he worked for the Operetta as conductor and accompanist.
The 1. Lévay Szilveszter International Musical Singing Competition was held under his supervision and he was among the winners of the Kálmán Imre International Conducting Competition where he was additionally awarded with the MTVA Special Award. As music director and conductor, Krisztián Balassa contributed to numerous excellent recordings. He has conducted gala concerts in Hungary and abroad on a regular basis and with different shows he makes tours throughout German speaking countries (Cologne, Munich, Frankfurt, Baden-Baden, Mannheim, Zürich, Düsseldorf, Basel, Stuttgart, Niedernhausen, Berlin).
In addition to the Latvian National Symphony Orchestra, he conducted great Hungarian ensembles such as the Concerto Budapest, the Szeged Symphony Orchestra, the Hungarian Radio Symphonic Orchestra and the Kodály Philharmonic Orchestra. Since 2016 Balassa works as 2nd conductor at Stage Entertainment GMBH in Germany where he made his debut with the Tanz der Vampire (Dance of Vampires) musical by Jim Steinman.