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Nikita Koselev is a seasoned software development professional with extensive experience, currently serving as a Lead Software Development Engineer at Mastercard since August 2016, where responsibilities include hands-on coding and analysis, along with advocating for new technologies and approaches through DevRel skills. Prior to this role, Nikita worked as a Software Developer for various companies from February 2008 to June 2016. Education includes a Master's degree in Information Technology and a Bachelor's degree in Information Technology, both obtained from TalTech – Tallinn University of Technology between 2001 and 2008.