A graduate of the Academy of Music in Krakow in Choral Conducting. In 2009–2012, he was a singer of the Polish Radio Choir in Krakow.
Since 2010, as a conductor, he has been associated with the Jagiellonian University Academic Choir Camerata Jagellonica. Since 2017, Janusz has also been conducting the Krakow Academic Choir of the Jagiellonian University. In 2013–2017, he was the conductor of the Krakow Male Choir of the Pontifical University of John Paul II in Krakow.
In 2016, the artist was one of the conductors and arrangers of the main events of the World Youth Day in Krakow.
In 2020–2024, he was the head of the Krakow Opera Choir.