Karol supports the tax law practice. He also cooperates with the aviation law team, in particular in passenger claim cases.
Before joining Łaszczuk & Partners, he gained experience in another Warsaw law firm. During his studies, Karol was an assistant in a grant project at the University of Warsaw titled “Centre for Regulatory Impact Assessment”. He is the author of several scientific and science-related publications and a co-author of the research report “Regulatory Impact Assessment. Foreign and Polish experience – conclusions and postulates”, prepared by the University of Warsaw Centre for Regulatory Impact Assessment and an opinion to the draft law on improving the legal and institutional environment for entrepreneurs. In 2024 he defended his master’s thesis titled 'Legal aspects of global value chains', which was awarded third place in the 20th edition of the Verba Veritatis Competition organised by the Association of Financial Companies in Poland. In 2025, Karol was admitted to the Doctoral School of Social Sciences at the University of Warsaw (discipline: legal studies). His planned research focuses on the role and private-law liability of online platform operators within global value chains - a topic of increasing significance, particularly in light of the digital economy’s rapid growth and evolving regulatory landscape."