Already in his childhood, he drew attention to himself by winning numerous competitions - the J. Kocian International Violin Competition, Prague Junior Note and Čírenie talentov (Slovakia). In 2002 he won first prize at the Beethoven's Hradec International Violin Competition and the prize for the best participant in the Václav Hudeček violin courses. In 2004 he also won the title of absolute winner at the prestigious Louis Spohr International Violin Competition held in Weimar, Germany. In 2008, he won first and second prizes at the world-famous Young Concert Artist competition in Leipzig and New York. At the age of 14 he was exceptionally admitted to the university (Institute for Art Studies in Ostrava) in the class of professor Zdeněk Gola. In 2007 he concluded his studies there with a Master's degree. He regularly performs as a soloist with many distinguished Czech and foreign orchestras, e.g., Czech Philharmonic Orchestra, Prague Philharmonic Orchestra, Prague Symphony Orchestra FOK and Czech Radio Symphony Orchestra, and abroad with Qatar Philharmonic Orchestra or Neue Westfalen Philharmonie. He is a long-time soloist of China's leading orchestra, the Wuhan Philharmonic Orchestra. In 2014, he recorded his critically acclaimed debut solo album Violino Solo for Supraphon, which contains some of the most difficult pieces for solo violin. Many of his concerts were filmed by the Czech Television, Czech Radio and the German ARD. As a chamber musician, he performs with outstanding Czech pianists Tomáš Kačo, Martin Kasík, Ivo Kahánek, Ivan Klánský and Miroslav Sekera. In 2011, the famous violinist Gidon Kremer invited him to perform together with many other international artists at his Kammermusikfest in Lockenhaus, Austria. He is regularly invited to major festivals such as Prague Spring, Janáček's May, Grand Festival of China and Choriner Musiksommer. From 2012 to the beginning of 2018, he was a member of the Smetana Trio. He recorded two CDs for Supraphon, which were later awarded the prestigious BBC Prize and the Diapason d'Or. In 2020 he founded the Piano Trio of the Czech Philharmonic, with which he won the Vienna International Competition in 2021. He teaches at the Prague Conservatory and the University of Ostrava. Jiří plays the Italian instrument by Joseph Gaglian from about 1774.
"I am a concertmaster of the Czech Philharmonic, solo player and chamber player. For me personally, Vivaldianno is actually a matter of the heart. My dad was a rock guitarist, I grew up on that music and I'm close to it. I've always been interested in this world of crossover of combining classical music with something new that reaches a lot more people than just classical music."