Since September 1, 2018 Dariusz si a Board Member of Black Red White S.A., and since December 1, 2018 President of the management Board of the company. In the years 2012-2018, the president of GOBARTO S.A. (formely PKM DUDA S.A.) responsible for development and implementation of the company's strategy. In the years 2009-2012, he was a member of the board of PKM DUDA and CEO of CM Makton S.A. In the years 1998-2008, he worked for the ORLEN Capital Group, where he was also a member of the Management Board of PKN ORLEN and Mazeikiu Nafta responsible, inter alia, for the oversight of the companies of the group and the integration of capital assets. He was also responsible for development and implementation of the restructuring plan in the ORLEN Capital Group.