Koller started his career in the early 1980s as the drummer of Jasná Páka and has also played in various other bands, including Žentour, Pusa, and Blue Effect.

Koller has produced music for Miro Žbirka, Koistinen, Alice, Plexis, Walk Choc Ice, Oskar Petr, Lucie Bílá, and many others.

In 2016, he produced the album Srdeční příběh for Michal Ambrož, longtime leader of the bands Jasná Páka and Hudba Praha.

[4] Together with Lucie member Michal Dvořák, Koller composed the score for the films Amerika (1994), Poslední přesun (1995), and Mrtvej brouk (1998).

[5] Koller has made appearances in several films and television productions, including Pražákům, těm je tu hej (1991), Accumulator 1 (1994), and Kancelář Blaník (2014).