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Marcin Ratajczak is an experienced IT professional with a strong background in network and security engineering. Currently serving as a Senior Security Engineer at Żabka Polska since May 2022, Marcin specializes in designing and implementing security solutions using CISCO and Palo Alto technologies, as well as cloud security in Azure. As the owner of Secure-Net, Marcin provides IT consultancy and technical workshops, while also holding the position of Security Solutions Architect at Trecom, where expertise includes designing network access and remote access solutions. Previous roles include Network Engineer at itelligence and IT System and Network Engineer at ATREM S.A., with a solid foundation in IT system administration from earlier positions at SNP Group, Mat-Oil Sp. z o.o, and CRUZ GROUP, INC. Marcin holds a Master's degree in Automation and Management from Poznan University of Technology.