Katarzyna Marciniak is a graduate of the SGH Warsaw School of Economics. She also completed her studies at the Faculty of Logistics at the Rheinisch-Westfälische Technische Hochschule Aachen.
Since the beginning her professional career has been related to railways. In 1995 - 2007, she held managerial positions in Cargosped and PKP Cargo companies. She was also a member of the Supervisory Board of Ogólnopolskie Zrzeszenie Agencji Celnych (Polish Association of Customs Agencies). In 2002, she passed the exam for candidates for supervisory board members in State-owned companies.
Since 2007, she has been working for Deutsche Bahn. She managed the representative office of Deutsche Bahn in Poland and after finalizing the acquisition of the PCC Rail Group, she managed sales in the automotive and intermodal markets as well as communication, development and strategy at DB Cargo Polska. Since April 2021 she has also been responsible for the digital transformation at the DB Cargo Polska Group.
She is an active member of industry organisations, being an expert on railway transport at Business Center Club; she has also managed the work of the Logistics Committee at the Polish-German Chamber of Industry and Commerce for many years.