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Hanna Treitsiak is currently working as a Sr. Backend Developer PHP/Node.js at ScienceSoft since June 2020. Prior to that, Hanna worked as a PHP Backend Developer at OCS Innovation Company (OCSICO®) starting from June 2019. Before their time at OCS Innovation Company, Hanna was a PHP Developer at ROZUMsoft, LLC from May 2014 to June 2019. Hanna Treitsiak completed their education at BSTU.