Rajna served as Assistant Conductor of the Győr Philharmonic Orchestra from 2017 to 2019, and as Chief Conductor from 2021 to 2025. In 2023, he was appointed Principal Conductor of the
Hungarian State Opera. Rajna has recently conducted
Der fliegende Holländer by Wagner, Verdi's
Macbeth, Strauss's
Die Fledermaus, and Donizetti's
Maria Stuarda. In addition, he maintains concert engagements with the
Hungarian National Philharmonic and the Győr Philharmonic. In 2025, at the age of 29, Rajna was named Music Director of the
Luxembourg Philharmonic Orchestra; his four-year tenure is scheduled to start in September 2026. He has conducted nearly all major Hungarian orchestras, including the
Hungarian National Philharmonic, the
Hungarian Radio Symphony Orchestra, the Budafok Dohnányi Orchestra, the Danubia Orchestra Óbuda, the Miskolc Symphony Orchestra, the Zugló Philharmonic, and the Duna Symphony Orchestra. Internationally, he has worked with the
London Philharmonic Orchestra, the orchestra of
Teatro La Fenice, the
Slovenian Radio Symphony Orchestra, and the
Nuremberg Symphony Orchestra. He has also appeared at the Tiroler Festspiele in
Erl and the
Weilburger Schlosskonzerte. In 2024, he was included in the Forbes Hungary "30 under 30" list of successful young Hungarians. ==Awards and recognition==