He was a student at the school during the Velvet Revolution, and began directing commercials and music videos for the new advertising agencies and production companies which were being established.
During his career, The Museum of Modern Art in New York acquired his short film Mulit as part of the Association of Independent Commercial Producers awards showcase in 2007.
[6] In 2014, Zachariáš directed Jeff Bridges reprising his role of "The Dude" from The Big Lebowski for a Kahlua advertisement.
[7] Zachariáš also made commercials for Apple, Adidas, Absolut Vodka, Volvo, Kronenbourg, Upwork, Newcastle Brown Ale, Chobani or Magners.
[8] In recent years Zachariáš collaborated with Karlovy Vary International Film Festival to create trailers with the recipients of Crystal Globe awards.